Skip to main content
Top
Published in: BMC Public Health 1/2014

Open Access 01-12-2014 | Research article

Estimating the burden of acute gastrointestinal illness in the community in Gansu Province, northwest China, 2012–2013

Authors: Xiang-Lai Sang, Xiao-Cheng Liang, Yan Chen, Jian-Dong Li, Jing-Guang Li, Li Bai, Jian-Yun Sun

Published in: BMC Public Health | Issue 1/2014

Login to get access

Abstract

Background

Acute gastrointestinal illness (AGI) imposes considerable social and economic burden on low and middle-income countries. This study aimed to estimate the occurrence, distribution, and burden of self-reported AGI in Gansu Province of northwest China, where economic growth rates have lagged far behind those of other regions in China and systematic studies to investigate the burden of AGI are still lacking.

Methods

Twelve-month, retrospective face-to-face surveys were conducted in three sentinel sites between June 2012 and May 2013. Respondents were asked if they had experienced diarrhoea or vomiting in the 28 days prior to the interview.

Results

In total, 2094 interviews were completed. The adjusted monthly prevalence was 8.5% with an incidence rate of 1.16 episodes of AGI per person-year. Healthcare was sought by 73.8% of those reporting illness. Of the cases who visited a doctor, 50.5% submitted a stool sample. The use of antibiotics was reported by 65.6% of the cases and 53.3% took antidiarrhoeals. In the multivariable model, age, household income and sentinel site were significant risk factors of being a case of AGI.

Conclusions

The burden of AGI was considerable in Gansu Province of northwest China. Ongoing research to identify the main causes of AGI is needed for more accurate estimate of the burden of AGI in this region.
Appendix
Available only for authorised users
Literature
1.
go back to reference Kosek M, Bern C, Guerrant RL: The global burden of diarrhoeal disease, as estimated from studies published between 1992 and 2000. Bull World Health Organ. 2003, 81 (3): 197-204.PubMedPubMedCentral Kosek M, Bern C, Guerrant RL: The global burden of diarrhoeal disease, as estimated from studies published between 1992 and 2000. Bull World Health Organ. 2003, 81 (3): 197-204.PubMedPubMedCentral
2.
go back to reference Friesema IH, Lugner AK, van Duynhoven YT: Costs of gastroenteritis in the Netherlands, with special attention for severe cases. Eur J Clin Microbiol Infect Dis. 2012, 31 (8): 1895-1900. 10.1007/s10096-011-1518-1.CrossRefPubMed Friesema IH, Lugner AK, van Duynhoven YT: Costs of gastroenteritis in the Netherlands, with special attention for severe cases. Eur J Clin Microbiol Infect Dis. 2012, 31 (8): 1895-1900. 10.1007/s10096-011-1518-1.CrossRefPubMed
3.
go back to reference Hellard ME, Sinclair MI, Harris AH, Kirk M, Fairley CK: Cost of community gastroenteritis. J Gastroenterol Hepatol. 2003, 18 (3): 322-328. 10.1046/j.1440-1746.2003.02959.x.CrossRefPubMed Hellard ME, Sinclair MI, Harris AH, Kirk M, Fairley CK: Cost of community gastroenteritis. J Gastroenterol Hepatol. 2003, 18 (3): 322-328. 10.1046/j.1440-1746.2003.02959.x.CrossRefPubMed
4.
go back to reference Henson SJ, Majowicz SE, Masakure O, Sockett PN, MacDougall L, Edge VL, Thomas MK, Fyfe M, Kovacs SJ, Jones AQ: Estimation of the costs of acute gastrointestinal illness in British Columbia, Canada. Int J Food Microbiol. 2008, 127 (1–2): 43-52.CrossRefPubMed Henson SJ, Majowicz SE, Masakure O, Sockett PN, MacDougall L, Edge VL, Thomas MK, Fyfe M, Kovacs SJ, Jones AQ: Estimation of the costs of acute gastrointestinal illness in British Columbia, Canada. Int J Food Microbiol. 2008, 127 (1–2): 43-52.CrossRefPubMed
5.
go back to reference Jones TF, McMillian MB, Scallan E, Frenzen PD, Cronquist AB, Thomas S, Angulo FJ: A population-based estimate of the substantial burden of diarrhoeal disease in the United States; FoodNet, 1996–2003. Epidemiol Infect. 2007, 135 (2): 293-301. 10.1017/S0950268806006765.CrossRefPubMed Jones TF, McMillian MB, Scallan E, Frenzen PD, Cronquist AB, Thomas S, Angulo FJ: A population-based estimate of the substantial burden of diarrhoeal disease in the United States; FoodNet, 1996–2003. Epidemiol Infect. 2007, 135 (2): 293-301. 10.1017/S0950268806006765.CrossRefPubMed
6.
go back to reference Tam CC, Rodrigues LC, Viviani L, Dodds JP, Evans MR, Hunter PR, Gray JJ, Letley LH, Rait G, Tompkins DS, O'Brien SJ: Longitudinal study of infectious intestinal disease in the UK (IID2 study): incidence in the community and presenting to general practice. Gut. 2012, 61 (1): 69-77. 10.1136/gut.2011.238386.CrossRefPubMed Tam CC, Rodrigues LC, Viviani L, Dodds JP, Evans MR, Hunter PR, Gray JJ, Letley LH, Rait G, Tompkins DS, O'Brien SJ: Longitudinal study of infectious intestinal disease in the UK (IID2 study): incidence in the community and presenting to general practice. Gut. 2012, 61 (1): 69-77. 10.1136/gut.2011.238386.CrossRefPubMed
7.
go back to reference Zhou YJ, Dai Y, Yuan BJ, Zhen SQ, Tang Z, Wu GL, Wang Y, Zhou MH, Chen Y: Population-based estimate of the burden of acute gastrointestinal illness in Jiangsu province, China, 2010–2011. Epidemiol Infect. 2013, 141 (5): 944-952. 10.1017/S0950268812001331.CrossRefPubMed Zhou YJ, Dai Y, Yuan BJ, Zhen SQ, Tang Z, Wu GL, Wang Y, Zhou MH, Chen Y: Population-based estimate of the burden of acute gastrointestinal illness in Jiangsu province, China, 2010–2011. Epidemiol Infect. 2013, 141 (5): 944-952. 10.1017/S0950268812001331.CrossRefPubMed
8.
go back to reference Chen Y, Yan WX, Zhou YJ, Zhen SQ, Zhang RH, Chen J, Liu ZH, Cheng HY, Liu H, Duan SG, Lan Z, Sun JC, You XY, Li JG, Wu YN: Burden of self-reported acute gastrointestinal illness in China: a population-based survey. BMC Public Health. 2013, 13: 456-10.1186/1471-2458-13-456.CrossRefPubMedPubMedCentral Chen Y, Yan WX, Zhou YJ, Zhen SQ, Zhang RH, Chen J, Liu ZH, Cheng HY, Liu H, Duan SG, Lan Z, Sun JC, You XY, Li JG, Wu YN: Burden of self-reported acute gastrointestinal illness in China: a population-based survey. BMC Public Health. 2013, 13: 456-10.1186/1471-2458-13-456.CrossRefPubMedPubMedCentral
9.
go back to reference Aguiar Prieto P, Finley RL, Muchaal PK, Guerin MT, Isaacs S, Dominguez AC, Coutin Marie G, Perez E: Burden of self-reported acute gastrointestinal illness in Cuba. J Health Popul Nutr. 2009, 27 (3): 345-357.PubMed Aguiar Prieto P, Finley RL, Muchaal PK, Guerin MT, Isaacs S, Dominguez AC, Coutin Marie G, Perez E: Burden of self-reported acute gastrointestinal illness in Cuba. J Health Popul Nutr. 2009, 27 (3): 345-357.PubMed
10.
go back to reference Hall GV, Kirk MD, Ashbolt R, Stafford R, Lalor K: Frequency of infectious gastrointestinal illness in Australia, 2002: regional, seasonal and demographic variation. Epidemiol Infect. 2006, 134 (1): 111-118.CrossRefPubMed Hall GV, Kirk MD, Ashbolt R, Stafford R, Lalor K: Frequency of infectious gastrointestinal illness in Australia, 2002: regional, seasonal and demographic variation. Epidemiol Infect. 2006, 134 (1): 111-118.CrossRefPubMed
11.
go back to reference Majowicz SE, Hall G, Scallan E, Adak GK, Gauci C, Jones TF, O'Brien S, Henao O, Sockett PN: A common, symptom-based case definition for gastroenteritis. Epidemiol Infect. 2008, 136 (7): 886-894.CrossRefPubMed Majowicz SE, Hall G, Scallan E, Adak GK, Gauci C, Jones TF, O'Brien S, Henao O, Sockett PN: A common, symptom-based case definition for gastroenteritis. Epidemiol Infect. 2008, 136 (7): 886-894.CrossRefPubMed
12.
go back to reference Rothman K, Greenland S, Lash T: Modern epidemiology. 2008, Philadelphia, Pennsylvania: Lippincott-Raven, 3 Rothman K, Greenland S, Lash T: Modern epidemiology. 2008, Philadelphia, Pennsylvania: Lippincott-Raven, 3
13.
go back to reference National Bureau of Statistics of China: Tabulation on the 2010 population census of the People’s Republic of China., vol. 1. 2012, Beijing: China Statistics Press National Bureau of Statistics of China: Tabulation on the 2010 population census of the People’s Republic of China., vol. 1. 2012, Beijing: China Statistics Press
14.
go back to reference Fletcher SM, Lewis-Fuller E, Williams H, Miller Z, Scarlett HP, Cooper C, Gordon-Johnson K-A, Vickers I, Shaw K, Wellington I, Thame J, Pérez E, Indar L: Magnitude, distribution, and estimated level of underreporting of acute gastroenteritis in Jamaica. J Health Popul Nutr. 2013, 31 (4 Suppl 1): 69-80.PubMed Fletcher SM, Lewis-Fuller E, Williams H, Miller Z, Scarlett HP, Cooper C, Gordon-Johnson K-A, Vickers I, Shaw K, Wellington I, Thame J, Pérez E, Indar L: Magnitude, distribution, and estimated level of underreporting of acute gastroenteritis in Jamaica. J Health Popul Nutr. 2013, 31 (4 Suppl 1): 69-80.PubMed
15.
go back to reference Gurpreet K, Tee GH, Amal NM, Paramesarvathy R, Karuthan C: Incidence and determinants of acute diarrhoea in Malaysia: a population-based study. J Health Popul Nutr. 2011, 29 (2): 103-112.CrossRefPubMedPubMedCentral Gurpreet K, Tee GH, Amal NM, Paramesarvathy R, Karuthan C: Incidence and determinants of acute diarrhoea in Malaysia: a population-based study. J Health Popul Nutr. 2011, 29 (2): 103-112.CrossRefPubMedPubMedCentral
16.
go back to reference Thomas MK, Perez E, Majowicz SE, Reid-Smith R, Olea A, Diaz J, Solari V, McEwen SA: Burden of acute gastrointestinal illness in the Metropolitan region, Chile, 2008. Epidemiol Infect. 2011, 139 (4): 560-571. 10.1017/S0950268810001160.CrossRefPubMed Thomas MK, Perez E, Majowicz SE, Reid-Smith R, Olea A, Diaz J, Solari V, McEwen SA: Burden of acute gastrointestinal illness in the Metropolitan region, Chile, 2008. Epidemiol Infect. 2011, 139 (4): 560-571. 10.1017/S0950268810001160.CrossRefPubMed
17.
go back to reference Ho SC, Chau PH, Fung PK, Sham A, Nelson EA, Sung J: Acute gastroenteritis in Hong Kong: a population-based telephone survey. Epidemiol Infect. 2010, 138 (7): 982-991. 10.1017/S0950268809991087.CrossRefPubMed Ho SC, Chau PH, Fung PK, Sham A, Nelson EA, Sung J: Acute gastroenteritis in Hong Kong: a population-based telephone survey. Epidemiol Infect. 2010, 138 (7): 982-991. 10.1017/S0950268809991087.CrossRefPubMed
18.
go back to reference Wheeler JG, Sethi D, Cowden JM, Wall PG, Rodrigues LC, Tompkins DS, Hudson MJ, Roderick PJ: Study of infectious intestinal disease in England: rates in the community, presenting to general practice, and reported to national surveillance. The Infectious Intestinal Disease Study Executive. BMJ. 1999, 318 (7190): 1046-1050. 10.1136/bmj.318.7190.1046.CrossRefPubMedPubMedCentral Wheeler JG, Sethi D, Cowden JM, Wall PG, Rodrigues LC, Tompkins DS, Hudson MJ, Roderick PJ: Study of infectious intestinal disease in England: rates in the community, presenting to general practice, and reported to national surveillance. The Infectious Intestinal Disease Study Executive. BMJ. 1999, 318 (7190): 1046-1050. 10.1136/bmj.318.7190.1046.CrossRefPubMedPubMedCentral
19.
go back to reference Cantwell LB, Henao OL, Hoekstra RM, Scallan E: The effect of different recall periods on estimates of acute gastroenteritis in the United States, FoodNet Population Survey 2006–2007. Foodborne Pathog Dis. 2010, 7 (10): 1225-1228. 10.1089/fpd.2010.0567.CrossRefPubMed Cantwell LB, Henao OL, Hoekstra RM, Scallan E: The effect of different recall periods on estimates of acute gastroenteritis in the United States, FoodNet Population Survey 2006–2007. Foodborne Pathog Dis. 2010, 7 (10): 1225-1228. 10.1089/fpd.2010.0567.CrossRefPubMed
20.
go back to reference Thomas MK, Perez E, Majowicz SE, Reid-Smith R, Albil S, Monteverde M, McEwen SA: Burden of acute gastrointestinal illness in Galvez, Argentina, 2007. J Health Popul Nutr. 2010, 28 (2): 149-158.CrossRefPubMedPubMedCentral Thomas MK, Perez E, Majowicz SE, Reid-Smith R, Albil S, Monteverde M, McEwen SA: Burden of acute gastrointestinal illness in Galvez, Argentina, 2007. J Health Popul Nutr. 2010, 28 (2): 149-158.CrossRefPubMedPubMedCentral
21.
go back to reference Adak GK, Long SM, O'Brien SJ: Trends in indigenous foodborne disease and deaths, England and Wales: 1992 to 2000. Gut. 2002, 51 (6): 832-841. 10.1136/gut.51.6.832.CrossRefPubMedPubMedCentral Adak GK, Long SM, O'Brien SJ: Trends in indigenous foodborne disease and deaths, England and Wales: 1992 to 2000. Gut. 2002, 51 (6): 832-841. 10.1136/gut.51.6.832.CrossRefPubMedPubMedCentral
22.
go back to reference Hall G, Kirk MD, Becker N, Gregory JE, Unicomb L, Millard G, Stafford R, Lalor K: Estimating foodborne gastroenteritis, Australia. Emerg Infect Dis. 2005, 11 (8): 1257-1264. 10.3201/eid1108.041367.CrossRefPubMedPubMedCentral Hall G, Kirk MD, Becker N, Gregory JE, Unicomb L, Millard G, Stafford R, Lalor K: Estimating foodborne gastroenteritis, Australia. Emerg Infect Dis. 2005, 11 (8): 1257-1264. 10.3201/eid1108.041367.CrossRefPubMedPubMedCentral
23.
go back to reference Scallan E, Griffin PM, Angulo FJ, Tauxe RV, Hoekstra RM: Foodborne illness acquired in the United States–unspecified agents. Emerg Infect Dis. 2011, 17 (1): 16-22. 10.3201/eid1701.P21101.CrossRefPubMedPubMedCentral Scallan E, Griffin PM, Angulo FJ, Tauxe RV, Hoekstra RM: Foodborne illness acquired in the United States–unspecified agents. Emerg Infect Dis. 2011, 17 (1): 16-22. 10.3201/eid1701.P21101.CrossRefPubMedPubMedCentral
24.
go back to reference Hall G, McDonald L, Majowicz SE, Scallan E, Kirk M, Sockett P, Angulo FJ: Respiratory symptoms and the case definition of gastroenteritis: an international analysis of the potential impact on burden estimates. Epidemiol Infect. 2010, 138 (1): 117-124. 10.1017/S0950268809990112.CrossRefPubMed Hall G, McDonald L, Majowicz SE, Scallan E, Kirk M, Sockett P, Angulo FJ: Respiratory symptoms and the case definition of gastroenteritis: an international analysis of the potential impact on burden estimates. Epidemiol Infect. 2010, 138 (1): 117-124. 10.1017/S0950268809990112.CrossRefPubMed
25.
go back to reference Scavia G, Baldinelli F, Busani L, Caprioli A: The burden of self-reported acute gastrointestinal illness in Italy: a retrospective survey, 2008–2009. Epidemiol Infect. 2012, 140 (7): 1193-1206. 10.1017/S0950268811002020.CrossRefPubMed Scavia G, Baldinelli F, Busani L, Caprioli A: The burden of self-reported acute gastrointestinal illness in Italy: a retrospective survey, 2008–2009. Epidemiol Infect. 2012, 140 (7): 1193-1206. 10.1017/S0950268811002020.CrossRefPubMed
26.
go back to reference Byrd-Bredbenner C, Maurer J, Wheatley V, Schaffner D, Bruhn C, Blalock L: Food safety self-reported behaviors and cognitions of young adults: results of a national study. J Food Prot. 2007, 70 (8): 1917-1926.PubMed Byrd-Bredbenner C, Maurer J, Wheatley V, Schaffner D, Bruhn C, Blalock L: Food safety self-reported behaviors and cognitions of young adults: results of a national study. J Food Prot. 2007, 70 (8): 1917-1926.PubMed
27.
go back to reference Thomas MK, Majowicz SE, MacDougall L, Sockett PN, Kovacs SJ, Fyfe M, Edge VL, Dore K, Flint JA, Henson S, Jones AQ: Population distribution and burden of acute gastrointestinal illness in British Columbia, Canada. BMC Public Health. 2006, 6: 307-10.1186/1471-2458-6-307.CrossRefPubMedPubMedCentral Thomas MK, Majowicz SE, MacDougall L, Sockett PN, Kovacs SJ, Fyfe M, Edge VL, Dore K, Flint JA, Henson S, Jones AQ: Population distribution and burden of acute gastrointestinal illness in British Columbia, Canada. BMC Public Health. 2006, 6: 307-10.1186/1471-2458-6-307.CrossRefPubMedPubMedCentral
28.
go back to reference Drayna P, McLellan SL, Simpson P, Li SH, Gorelick MH: Association between rainfall and pediatric emergency department visits for acute gastrointestinal illness. Environ Health Perspect. 2010, 118 (10): 1439-1443. 10.1289/ehp.0901671.CrossRefPubMedPubMedCentral Drayna P, McLellan SL, Simpson P, Li SH, Gorelick MH: Association between rainfall and pediatric emergency department visits for acute gastrointestinal illness. Environ Health Perspect. 2010, 118 (10): 1439-1443. 10.1289/ehp.0901671.CrossRefPubMedPubMedCentral
29.
go back to reference Febriani Y, Levallois P, Gingras S, Gosselin P, Majowicz SE, Fleury MD: The association between farming activities, precipitation, and the risk of acute gastrointestinal illness in rural municipalities of Quebec, Canada: a cross-sectional study. BMC Public Health. 2010, 10: 48-10.1186/1471-2458-10-48.CrossRefPubMedPubMedCentral Febriani Y, Levallois P, Gingras S, Gosselin P, Majowicz SE, Fleury MD: The association between farming activities, precipitation, and the risk of acute gastrointestinal illness in rural municipalities of Quebec, Canada: a cross-sectional study. BMC Public Health. 2010, 10: 48-10.1186/1471-2458-10-48.CrossRefPubMedPubMedCentral
30.
go back to reference Scallan E, Fitzgerald M, Collins C, Crowley D, Daly L, Devine M, Igoe D, Quigley T, Robinson T, Smyth B: Acute gastroenteritis in northern Ireland and the Republic of Ireland: a telephone survey. Commun Dis Public Health. 2004, 7 (1): 61-67.PubMed Scallan E, Fitzgerald M, Collins C, Crowley D, Daly L, Devine M, Igoe D, Quigley T, Robinson T, Smyth B: Acute gastroenteritis in northern Ireland and the Republic of Ireland: a telephone survey. Commun Dis Public Health. 2004, 7 (1): 61-67.PubMed
31.
go back to reference Evans MR, Sarvotham T, Thomas DR, Howard AJ: Domestic and travel-related foodborne gastrointestinal illness in a population health survey. Epidemiol Infect. 2006, 134 (4): 686-693. 10.1017/S0950268805005790.CrossRefPubMedPubMedCentral Evans MR, Sarvotham T, Thomas DR, Howard AJ: Domestic and travel-related foodborne gastrointestinal illness in a population health survey. Epidemiol Infect. 2006, 134 (4): 686-693. 10.1017/S0950268805005790.CrossRefPubMedPubMedCentral
32.
go back to reference Muller L, Korsgaard H, Ethelberg S: Burden of acute gastrointestinal illness in Denmark 2009: a population-based telephone survey. Epidemiol Infect. 2012, 140 (2): 290-298. 10.1017/S0950268811000471.CrossRefPubMed Muller L, Korsgaard H, Ethelberg S: Burden of acute gastrointestinal illness in Denmark 2009: a population-based telephone survey. Epidemiol Infect. 2012, 140 (2): 290-298. 10.1017/S0950268811000471.CrossRefPubMed
33.
go back to reference Van Cauteren D, De Valk H, Vaux S, Le Strat Y, Vaillant V: Burden of acute gastroenteritis and healthcare-seeking behaviour in France: a population-based study. Epidemiol Infect. 2012, 140 (4): 697-705. 10.1017/S0950268811000999.CrossRefPubMed Van Cauteren D, De Valk H, Vaux S, Le Strat Y, Vaillant V: Burden of acute gastroenteritis and healthcare-seeking behaviour in France: a population-based study. Epidemiol Infect. 2012, 140 (4): 697-705. 10.1017/S0950268811000999.CrossRefPubMed
34.
go back to reference Adlam SB, Perera S, Lake RJ, Campbell DM, Williman JA, Baker MG: Acute gastrointestinal illness in New Zealand: a community study. Epidemiol Infect. 2011, 139 (2): 302-308. 10.1017/S0950268810000932.CrossRefPubMed Adlam SB, Perera S, Lake RJ, Campbell DM, Williman JA, Baker MG: Acute gastrointestinal illness in New Zealand: a community study. Epidemiol Infect. 2011, 139 (2): 302-308. 10.1017/S0950268810000932.CrossRefPubMed
35.
go back to reference Scallan E, Majowicz SE, Hall G, Banerjee A, Bowman CL, Daly L, Jones T, Kirk MD, Fitzgerald M, Angulo FJ: Prevalence of diarrhoea in the community in Australia, Canada, Ireland, and the United States. Int J Epidemiol. 2005, 34 (2): 454-460. 10.1093/ije/dyh413.CrossRefPubMed Scallan E, Majowicz SE, Hall G, Banerjee A, Bowman CL, Daly L, Jones T, Kirk MD, Fitzgerald M, Angulo FJ: Prevalence of diarrhoea in the community in Australia, Canada, Ireland, and the United States. Int J Epidemiol. 2005, 34 (2): 454-460. 10.1093/ije/dyh413.CrossRefPubMed
36.
go back to reference Gauci C, Gilles H, O'Brien S, Mamo J, Stabile I, Ruggeri FM, Gatt A, Calleja N, Spiteri G: The magnitude and distribution of infectious intestinal disease in Malta: a population-based study. Epidemiol Infect. 2007, 135 (8): 1282-1289.PubMedPubMedCentral Gauci C, Gilles H, O'Brien S, Mamo J, Stabile I, Ruggeri FM, Gatt A, Calleja N, Spiteri G: The magnitude and distribution of infectious intestinal disease in Malta: a population-based study. Epidemiol Infect. 2007, 135 (8): 1282-1289.PubMedPubMedCentral
37.
go back to reference Herikstad H, Yang S, Van Gilder TJ, Vugia D, Hadler J, Blake P, Deneen V, Shiferaw B, Angulo FJ: A population-based estimate of the burden of diarrhoeal illness in the United States: FoodNet, 1996–7. Epidemiol Infect. 2002, 129 (1): 9-17.PubMedPubMedCentral Herikstad H, Yang S, Van Gilder TJ, Vugia D, Hadler J, Blake P, Deneen V, Shiferaw B, Angulo FJ: A population-based estimate of the burden of diarrhoeal illness in the United States: FoodNet, 1996–7. Epidemiol Infect. 2002, 129 (1): 9-17.PubMedPubMedCentral
Metadata
Title
Estimating the burden of acute gastrointestinal illness in the community in Gansu Province, northwest China, 2012–2013
Authors
Xiang-Lai Sang
Xiao-Cheng Liang
Yan Chen
Jian-Dong Li
Jing-Guang Li
Li Bai
Jian-Yun Sun
Publication date
01-12-2014
Publisher
BioMed Central
Published in
BMC Public Health / Issue 1/2014
Electronic ISSN: 1471-2458
DOI
https://doi.org/10.1186/1471-2458-14-787

Other articles of this Issue 1/2014

BMC Public Health 1/2014 Go to the issue