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Published in: Journal of Assisted Reproduction and Genetics 12/2011

01-12-2011 | ASSISTED REPRODUCTION TECHNOLOGIES

Implantation rates of embryos generated from slow cooled human oocytes from young women are comparable to those of fresh and frozen embryos from the same age group

Authors: Debra A. Gook, David H. Edgar

Published in: Journal of Assisted Reproduction and Genetics | Issue 12/2011

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Abstract

Previous reports of slow cooling of human mature oocytes have shown a reduced clinical efficiency relative to fresh oocytes. This study reports that equivalent fertilization and implantation rates to those obtained using fresh oocytes and cryopreserved embryos can be achieved with human mature oocytes dehydrated in 1.5 M propanediol and 0.2 M sucrose at 37°C and cryopreserved using slow cooling rates.
Literature
1.
go back to reference Noyes N, Boldt J, Nagy ZP. Oocyte cryopreservation: is it time to remove its experimental label? J Assist Reprod Genet. 2010;27(2–3):69–74.PubMedCrossRef Noyes N, Boldt J, Nagy ZP. Oocyte cryopreservation: is it time to remove its experimental label? J Assist Reprod Genet. 2010;27(2–3):69–74.PubMedCrossRef
2.
go back to reference Noyes N, Porcu E, Borini A. Over 900 oocyte cryopreservation babies born with no apparent increase in congenital anomalies. Reprod Biomed Online. 2009;18(6):769–76.PubMedCrossRef Noyes N, Porcu E, Borini A. Over 900 oocyte cryopreservation babies born with no apparent increase in congenital anomalies. Reprod Biomed Online. 2009;18(6):769–76.PubMedCrossRef
3.
go back to reference Yang D, Brown SE, Nguyen K, et al. Live birth after the transfer of human embryos developed from cryopreserved oocytes harvested before cancer treatment. Fertil Steril. 2007;87(6):1469.e1–1469.e4. Yang D, Brown SE, Nguyen K, et al. Live birth after the transfer of human embryos developed from cryopreserved oocytes harvested before cancer treatment. Fertil Steril. 2007;87(6):1469.e1–1469.e4.
4.
go back to reference Porcu E, Venturoli S, Damiano G, et al. Healthy twins delivered after oocyte cryopreservation and bilateral ovariectomy for ovarian cancer. Reprod Biomed Online. 2008;17(2):265–7.PubMedCrossRef Porcu E, Venturoli S, Damiano G, et al. Healthy twins delivered after oocyte cryopreservation and bilateral ovariectomy for ovarian cancer. Reprod Biomed Online. 2008;17(2):265–7.PubMedCrossRef
5.
go back to reference Cobo A, Meseguer M, Remohi J, et al. Use of cryo-banked oocytes in an ovum donation programme: a prospective, randomized, controlled, clinical trial. Hum Reprod. 2010;25(9):2239–46.PubMedCrossRef Cobo A, Meseguer M, Remohi J, et al. Use of cryo-banked oocytes in an ovum donation programme: a prospective, randomized, controlled, clinical trial. Hum Reprod. 2010;25(9):2239–46.PubMedCrossRef
6.
go back to reference Borini A, Bianchi V, Bonu MA, et al. Evidence-based clinical outcome of oocyte slow cooling. Reprod Biomed Online. 2007;15(2):175–81.PubMedCrossRef Borini A, Bianchi V, Bonu MA, et al. Evidence-based clinical outcome of oocyte slow cooling. Reprod Biomed Online. 2007;15(2):175–81.PubMedCrossRef
7.
go back to reference Levi Setti PE, Albani E, Novara P, et al. Cryopreservation of supernumerary oocytes in IVF/ICSI cycles. Hum Reprod. 2006;21(2):370–5.CrossRef Levi Setti PE, Albani E, Novara P, et al. Cryopreservation of supernumerary oocytes in IVF/ICSI cycles. Hum Reprod. 2006;21(2):370–5.CrossRef
8.
go back to reference Antinori M, Licata E, Dani G, et al. Cryotop vitrification of human oocytes results in high survival rate and healthy deliveries. Reprod Biomed Online. 2007;14(1):72–9.PubMedCrossRef Antinori M, Licata E, Dani G, et al. Cryotop vitrification of human oocytes results in high survival rate and healthy deliveries. Reprod Biomed Online. 2007;14(1):72–9.PubMedCrossRef
9.
go back to reference Cobo A, Kuwayama M, Perez S, et al. Comparison of concomitant outcome achieved with fresh and cryopreserved donor oocytes vitrified by the Cryotop method. Fertil Steril. 2008;89(6):1657–64.PubMedCrossRef Cobo A, Kuwayama M, Perez S, et al. Comparison of concomitant outcome achieved with fresh and cryopreserved donor oocytes vitrified by the Cryotop method. Fertil Steril. 2008;89(6):1657–64.PubMedCrossRef
10.
go back to reference Ubaldi F, Anniballo R, Romano S, et al. Cumulative ongoing pregnancy rate achieved with oocyte vitrification and cleavage stage transfer without embryo selection in a standard infertility program. Hum Reprod. 2010;25(5):1199–205.PubMedCrossRef Ubaldi F, Anniballo R, Romano S, et al. Cumulative ongoing pregnancy rate achieved with oocyte vitrification and cleavage stage transfer without embryo selection in a standard infertility program. Hum Reprod. 2010;25(5):1199–205.PubMedCrossRef
11.
12.
go back to reference Fabbri R, Porcu E, Marsella T, et al. Human oocyte cryopreservation: new perspectives regarding oocyte survival. Hum Reprod. 2001;16(3):411–6.PubMedCrossRef Fabbri R, Porcu E, Marsella T, et al. Human oocyte cryopreservation: new perspectives regarding oocyte survival. Hum Reprod. 2001;16(3):411–6.PubMedCrossRef
13.
go back to reference Bianchi V, Coticchio G, Distratis V, et al. Early cleavage delay in cryopreserved human oocytes. Hum Reprod. 2005;20 Suppl 1:i54. Bianchi V, Coticchio G, Distratis V, et al. Early cleavage delay in cryopreserved human oocytes. Hum Reprod. 2005;20 Suppl 1:i54.
14.
go back to reference Nottola SA, Macchiarelli G, Coticchio G, et al. Ultrastructure of human mature oocytes after slow cooling cryopreservation using different sucrose concentrations. Hum Reprod. 2007;22(4):1123–33.PubMedCrossRef Nottola SA, Macchiarelli G, Coticchio G, et al. Ultrastructure of human mature oocytes after slow cooling cryopreservation using different sucrose concentrations. Hum Reprod. 2007;22(4):1123–33.PubMedCrossRef
15.
go back to reference Parmegiani L, Cognigni GE, Bernardi S, et al. Freezing within 2 h from oocyte retrieval increases the efficiency of human oocyte cryopreservation when using a slow freezing/rapid thawing protocol with high sucrose concentration. Hum Reprod. 2008;23(8):1771–7.PubMedCrossRef Parmegiani L, Cognigni GE, Bernardi S, et al. Freezing within 2 h from oocyte retrieval increases the efficiency of human oocyte cryopreservation when using a slow freezing/rapid thawing protocol with high sucrose concentration. Hum Reprod. 2008;23(8):1771–7.PubMedCrossRef
16.
go back to reference Konc J, Kanyo K, Varga E, et al. Births resulting from oocyte cryopreservation using a slow freezing protocol with propanediol and sucrose. Syst Biol Reprod Med. 2008;54(4–5):205–10.PubMedCrossRef Konc J, Kanyo K, Varga E, et al. Births resulting from oocyte cryopreservation using a slow freezing protocol with propanediol and sucrose. Syst Biol Reprod Med. 2008;54(4–5):205–10.PubMedCrossRef
17.
go back to reference Winslow K, Yang D, Blohm P, et al. Oocyte cryopreservation/a 3 year follow up of sixteen births. Fertil Steril. 2001;76(3,Suppl 1):S120. Abst P-28.CrossRef Winslow K, Yang D, Blohm P, et al. Oocyte cryopreservation/a 3 year follow up of sixteen births. Fertil Steril. 2001;76(3,Suppl 1):S120. Abst P-28.CrossRef
18.
go back to reference Chen ZJ, Li M, Li Y, et al. Effects of sucrose concentration on the developmental potential of human frozen-thawed oocytes at different stages of maturity. Hum Reprod. 2004;19(10):2345–9.PubMedCrossRef Chen ZJ, Li M, Li Y, et al. Effects of sucrose concentration on the developmental potential of human frozen-thawed oocytes at different stages of maturity. Hum Reprod. 2004;19(10):2345–9.PubMedCrossRef
19.
go back to reference Bianchi V, Coticchio G, Distratis V, et al. Differential sucrose concentration during dehydration (0.2 mol/l) and rehydration (0.3 mol/l) increases the implantation rate of frozen human oocytes. Reprod Biomed Online. 2007;14(1):64–71.PubMedCrossRef Bianchi V, Coticchio G, Distratis V, et al. Differential sucrose concentration during dehydration (0.2 mol/l) and rehydration (0.3 mol/l) increases the implantation rate of frozen human oocytes. Reprod Biomed Online. 2007;14(1):64–71.PubMedCrossRef
20.
go back to reference Borini A, Levi Setti PE, Anserini P, et al. Multicenter observational study on slow-cooling oocyte cryopreservation: clinical outcome. Fertil Steril. 2010;94(5):1662–8.PubMedCrossRef Borini A, Levi Setti PE, Anserini P, et al. Multicenter observational study on slow-cooling oocyte cryopreservation: clinical outcome. Fertil Steril. 2010;94(5):1662–8.PubMedCrossRef
21.
go back to reference Yang D, Winslow K, Blohm P, et al. Oocyte donation using cryopreserved donor oocytes. Fertil Steril. 2002;78(3, Suppl 1):S14. Abst O-37.CrossRef Yang D, Winslow K, Blohm P, et al. Oocyte donation using cryopreserved donor oocytes. Fertil Steril. 2002;78(3, Suppl 1):S14. Abst O-37.CrossRef
22.
go back to reference Ebner T, Moser M, Sommergruber M, et al. Selection based on morphological assessment of oocytes and embryos at different stages of preimplantation development: a review. Hum Reprod Update. 2003;9(3):251–62.PubMedCrossRef Ebner T, Moser M, Sommergruber M, et al. Selection based on morphological assessment of oocytes and embryos at different stages of preimplantation development: a review. Hum Reprod Update. 2003;9(3):251–62.PubMedCrossRef
23.
go back to reference Hunter J, Bernard A, Fuller B, et al. Plasma membrane water permeabilities of human oocytes: the temperature dependence of water movement in individual cells. J Cell Physiol. 1992;150(1):175–9.PubMedCrossRef Hunter J, Bernard A, Fuller B, et al. Plasma membrane water permeabilities of human oocytes: the temperature dependence of water movement in individual cells. J Cell Physiol. 1992;150(1):175–9.PubMedCrossRef
24.
go back to reference Hunter JE, Bernard A, Fuller BJ, et al. Measurements of the membrane water permeability (Lp) and its temperature dependence (activation energy) in human fresh and failed-to- fertilize oocytes and mouse oocyte. Cryobiology. 1992;29(2):240–9.PubMedCrossRef Hunter JE, Bernard A, Fuller BJ, et al. Measurements of the membrane water permeability (Lp) and its temperature dependence (activation energy) in human fresh and failed-to- fertilize oocytes and mouse oocyte. Cryobiology. 1992;29(2):240–9.PubMedCrossRef
25.
go back to reference Newton H, Fisher J, Arnold JR, et al. Permeation of human ovarian tissue with cryoprotective agents in preparation for cryopreservation. Hum Reprod. 1998;13(2):376–80.PubMedCrossRef Newton H, Fisher J, Arnold JR, et al. Permeation of human ovarian tissue with cryoprotective agents in preparation for cryopreservation. Hum Reprod. 1998;13(2):376–80.PubMedCrossRef
26.
go back to reference Bourne H, Richings N, Harari O, et al. The use of intracytoplasmic sperm injection for the treatment of severe and extreme male infertility. Reprod Fertil Dev. 1995;7:237–45.PubMedCrossRef Bourne H, Richings N, Harari O, et al. The use of intracytoplasmic sperm injection for the treatment of severe and extreme male infertility. Reprod Fertil Dev. 1995;7:237–45.PubMedCrossRef
27.
go back to reference Lawler C, Baker HW, Edgar DH. Relationships between timing of syngamy, female age and implantation potential in human in vitro-fertilised oocytes. Reprod Fertil Dev. 2007;19(3):482–7.PubMedCrossRef Lawler C, Baker HW, Edgar DH. Relationships between timing of syngamy, female age and implantation potential in human in vitro-fertilised oocytes. Reprod Fertil Dev. 2007;19(3):482–7.PubMedCrossRef
28.
go back to reference Edgar DH, Bourne H, Speirs AL, et al. A quantitative analysis of the impact of cryopreservation on the implantation potential of human early cleavage stage embryos. Hum Reprod. 2000;15:175–9.PubMedCrossRef Edgar DH, Bourne H, Speirs AL, et al. A quantitative analysis of the impact of cryopreservation on the implantation potential of human early cleavage stage embryos. Hum Reprod. 2000;15:175–9.PubMedCrossRef
29.
go back to reference Edgar DH, Karani J, Gook DA. Increasing dehydration of human cleavage-stage embryos prior to slow cooling significantly increases cryosurvival. Reprod Biomed Online. 2009;19(4):521–5.PubMedCrossRef Edgar DH, Karani J, Gook DA. Increasing dehydration of human cleavage-stage embryos prior to slow cooling significantly increases cryosurvival. Reprod Biomed Online. 2009;19(4):521–5.PubMedCrossRef
30.
go back to reference Gook DA, Hale L, Edgar DH. Live birth following transfer of a cryopreserved embryo generated from a cryopreserved oocyte and a cryopreserved sperm: case report. J Assist Reprod Genet. 2007;24(1):43–5.PubMedCrossRef Gook DA, Hale L, Edgar DH. Live birth following transfer of a cryopreserved embryo generated from a cryopreserved oocyte and a cryopreserved sperm: case report. J Assist Reprod Genet. 2007;24(1):43–5.PubMedCrossRef
31.
go back to reference Borini A, Sciajno R, Bianchi V, et al. Cinical outcome of oocyte cryopreservation after slow cooling with a protocol utilizing a high sucrose concentration. Hum Reprod. 2006;21(2):512–7.PubMedCrossRef Borini A, Sciajno R, Bianchi V, et al. Cinical outcome of oocyte cryopreservation after slow cooling with a protocol utilizing a high sucrose concentration. Hum Reprod. 2006;21(2):512–7.PubMedCrossRef
32.
go back to reference Barritt J, Luna M, Duke M, et al. Report of four donor-recipient oocyte cryopreservation cycles resulting in high pregnancy and implantation rates. Fertil Steril. 2007;87(1):189.e13–189.e17. Barritt J, Luna M, Duke M, et al. Report of four donor-recipient oocyte cryopreservation cycles resulting in high pregnancy and implantation rates. Fertil Steril. 2007;87(1):189.e13–189.e17.
33.
go back to reference Ferraretti AP, Lappi M, Magli MC, et al. Factors affecting thawed oocyte viability suggest a customized policy of embryo transfer. Fertil Steril. 2010;94(4):1308–13. Ferraretti AP, Lappi M, Magli MC, et al. Factors affecting thawed oocyte viability suggest a customized policy of embryo transfer. Fertil Steril. 2010;94(4):1308–13.
34.
go back to reference La Sala GB, Nicoli A, Villani MT, et al. Outcome of 518 salvage oocyte-cryopreservation cycles performed as a routine procedure in an in vitro fertilization program. Fertil Steril. 2006;86(5):1423–7.PubMedCrossRef La Sala GB, Nicoli A, Villani MT, et al. Outcome of 518 salvage oocyte-cryopreservation cycles performed as a routine procedure in an in vitro fertilization program. Fertil Steril. 2006;86(5):1423–7.PubMedCrossRef
35.
go back to reference De Santis L, Cino I, Rabellotti E, et al. Oocyte cryopreservation: clinical outcome of slow-cooling protocols differing in sucrose concentration. Reprod Biomed Online. 2007;14(1):57–63.PubMedCrossRef De Santis L, Cino I, Rabellotti E, et al. Oocyte cryopreservation: clinical outcome of slow-cooling protocols differing in sucrose concentration. Reprod Biomed Online. 2007;14(1):57–63.PubMedCrossRef
36.
go back to reference Chamayou S, Alecci C, Ragolia C, et al. Comparison of in-vitro outcomes from cryopreserved oocytes and sibling fresh oocytes. Reprod Biomed Online. 2006;12(6):730–6.PubMedCrossRef Chamayou S, Alecci C, Ragolia C, et al. Comparison of in-vitro outcomes from cryopreserved oocytes and sibling fresh oocytes. Reprod Biomed Online. 2006;12(6):730–6.PubMedCrossRef
37.
go back to reference Magli MC, Lappi M, Ferraretti AP, et al. Impact of oocyte cryopreservation on embryo development. Fertil Steril. 2010;93(2):510–6.PubMedCrossRef Magli MC, Lappi M, Ferraretti AP, et al. Impact of oocyte cryopreservation on embryo development. Fertil Steril. 2010;93(2):510–6.PubMedCrossRef
38.
go back to reference Parmegiani L, Garello C, Granella F, et al. Long-term cryostorage does not adversely affect the outcome of oocyte thawing cycles. Reprod Biomed Online. 2009;19(3):374–9.PubMedCrossRef Parmegiani L, Garello C, Granella F, et al. Long-term cryostorage does not adversely affect the outcome of oocyte thawing cycles. Reprod Biomed Online. 2009;19(3):374–9.PubMedCrossRef
39.
go back to reference Leibo SP. Water permeability and its activation energy of fertilized and unfertilized mouse ova. J Membr Biol. 1980;53(3):179–88.PubMedCrossRef Leibo SP. Water permeability and its activation energy of fertilized and unfertilized mouse ova. J Membr Biol. 1980;53(3):179–88.PubMedCrossRef
40.
go back to reference Grifo JA, Noyes N. Delivery rate using cryopreserved oocytes is comparable to conventional in vitro fertilization using fresh oocytes: potential fertility preservation for female cancer patients. Fertil Steril. 2009;93(2):391–6.PubMedCrossRef Grifo JA, Noyes N. Delivery rate using cryopreserved oocytes is comparable to conventional in vitro fertilization using fresh oocytes: potential fertility preservation for female cancer patients. Fertil Steril. 2009;93(2):391–6.PubMedCrossRef
41.
go back to reference Gook DA, Osborn SM, Bourne H, et al. Fertilization of human oocytes following cryopreservation; normal karyotypes and absence of stray chromosomes. Hum Reprod. 1994;9(4):684–91.PubMed Gook DA, Osborn SM, Bourne H, et al. Fertilization of human oocytes following cryopreservation; normal karyotypes and absence of stray chromosomes. Hum Reprod. 1994;9(4):684–91.PubMed
42.
go back to reference Parmegiani L, Bertocci F, Garello C, et al. Efficiency of human oocyte slow freezing: results from five assisted reproduction centres. Reprod Biomed Online. 2009;18(3):352–9.PubMedCrossRef Parmegiani L, Bertocci F, Garello C, et al. Efficiency of human oocyte slow freezing: results from five assisted reproduction centres. Reprod Biomed Online. 2009;18(3):352–9.PubMedCrossRef
43.
go back to reference Ferraretti AP, Lappi M, Magli MC, et al. Factors affecting thawed oocyte viability suggest a customized policy of embryo transfer. Fertil Steril. 2010;94(4):1308–13.PubMedCrossRef Ferraretti AP, Lappi M, Magli MC, et al. Factors affecting thawed oocyte viability suggest a customized policy of embryo transfer. Fertil Steril. 2010;94(4):1308–13.PubMedCrossRef
44.
go back to reference Coticchio G, Distratis V, Bianchi V, et al. Fertilization and early developmental ability of cryopreserved human oocytes is not affected compared to sibling fresh oocytes. Fertil Steril. 2007;88 Suppl 1:P-700. Coticchio G, Distratis V, Bianchi V, et al. Fertilization and early developmental ability of cryopreserved human oocytes is not affected compared to sibling fresh oocytes. Fertil Steril. 2007;88 Suppl 1:P-700.
45.
go back to reference Cobo A, Romero JL, Perez S, et al. Storage of human oocytes in the vapor phase of nitrogen. Fertil Steril. 2010b. Cobo A, Romero JL, Perez S, et al. Storage of human oocytes in the vapor phase of nitrogen. Fertil Steril. 2010b.
46.
go back to reference Katayama KP, Stehlik J, Kuwayama M, et al. High survival rate of vitrified human oocytes results in clinical pregnancy. Fertil Steril. 2003;80(1):223–4.PubMedCrossRef Katayama KP, Stehlik J, Kuwayama M, et al. High survival rate of vitrified human oocytes results in clinical pregnancy. Fertil Steril. 2003;80(1):223–4.PubMedCrossRef
47.
go back to reference Nagy ZP, Chang CC, Shapiro DB, et al. Clinical evaluation of the efficiency of an oocyte donation program using egg cryo-banking. Fertil Steril. 2009;92(2):520–6.PubMedCrossRef Nagy ZP, Chang CC, Shapiro DB, et al. Clinical evaluation of the efficiency of an oocyte donation program using egg cryo-banking. Fertil Steril. 2009;92(2):520–6.PubMedCrossRef
48.
go back to reference Garcia JI, Noriega-Portella L, Noriega-Hoces L. Efficacy of oocyte vitrification combined with blastocyst stage transfer in an egg donation program. Hum Reprod. 2011;26:782–90.PubMedCrossRef Garcia JI, Noriega-Portella L, Noriega-Hoces L. Efficacy of oocyte vitrification combined with blastocyst stage transfer in an egg donation program. Hum Reprod. 2011;26:782–90.PubMedCrossRef
49.
go back to reference Trokoudes KM, Pavlides C, Zhang X. Comparison outcome of fresh and vitrified donor oocytes in an egg-sharing donation program. Fertil Steril. 2011;95(6):1996–2000.PubMedCrossRef Trokoudes KM, Pavlides C, Zhang X. Comparison outcome of fresh and vitrified donor oocytes in an egg-sharing donation program. Fertil Steril. 2011;95(6):1996–2000.PubMedCrossRef
50.
go back to reference Schoolcraft WB, Keller JL, Schlenker T. Excellent embryo quality obtained from vitrified oocytes. Reprod Biomed Online. 2009;19(6):820–3.PubMedCrossRef Schoolcraft WB, Keller JL, Schlenker T. Excellent embryo quality obtained from vitrified oocytes. Reprod Biomed Online. 2009;19(6):820–3.PubMedCrossRef
51.
go back to reference Noyes N, Knopman J, Labella P, et al. Oocyte cryopreservation outcomes including pre-cryopreservation and post-thaw meiotic spindle evaluation following slow cooling and vitrification of human oocytes. Fertil Steril. 2010b. Noyes N, Knopman J, Labella P, et al. Oocyte cryopreservation outcomes including pre-cryopreservation and post-thaw meiotic spindle evaluation following slow cooling and vitrification of human oocytes. Fertil Steril. 2010b.
52.
go back to reference Smith GD, Serafini PC, Fioravanti J, et al. Prospective randomized comparison of human oocyte cryopreservation with slow-rate freezing or vitrification. Fertil Steril. 2010;94(6):2088–95.PubMedCrossRef Smith GD, Serafini PC, Fioravanti J, et al. Prospective randomized comparison of human oocyte cryopreservation with slow-rate freezing or vitrification. Fertil Steril. 2010;94(6):2088–95.PubMedCrossRef
53.
go back to reference Bonetti A, Cervi M, Tomei F, et al. Ultrastructural evaluation of human metaphase II oocytes after vitrification: closed versus open devices. Fertil Steril. 2011;95(3):928–35.PubMedCrossRef Bonetti A, Cervi M, Tomei F, et al. Ultrastructural evaluation of human metaphase II oocytes after vitrification: closed versus open devices. Fertil Steril. 2011;95(3):928–35.PubMedCrossRef
54.
go back to reference McDonald CA, Valluzo L, Chuang L, et al. Nitrogen vapor shipment of vitrified oocytes: time for caution, in Fertil Steril. 2011: United States. p. 2628–30. McDonald CA, Valluzo L, Chuang L, et al. Nitrogen vapor shipment of vitrified oocytes: time for caution, in Fertil Steril. 2011: United States. p. 2628–30.
55.
go back to reference Vajta G, Nagy ZP. Are programmable freezers still needed in the embryo laboratory? Review on vitrification. Reprod Biomed Online. 2006;12(6):779–96.PubMedCrossRef Vajta G, Nagy ZP. Are programmable freezers still needed in the embryo laboratory? Review on vitrification. Reprod Biomed Online. 2006;12(6):779–96.PubMedCrossRef
Metadata
Title
Implantation rates of embryos generated from slow cooled human oocytes from young women are comparable to those of fresh and frozen embryos from the same age group
Authors
Debra A. Gook
David H. Edgar
Publication date
01-12-2011
Publisher
Springer US
Published in
Journal of Assisted Reproduction and Genetics / Issue 12/2011
Print ISSN: 1058-0468
Electronic ISSN: 1573-7330
DOI
https://doi.org/10.1007/s10815-011-9678-6

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