[1] Soochow Univ, Childrens Hosp, Suzhou, Peoples R China
[2] Nanjing Med Univ, Dept Pediat Surg, Childrens Hosp, Nanjing 210008, Jiangsu, Peoples R China
[3] Nanjing Med Univ, Sch Publ Hlth, Minist Educ, Key Lab Modern Toxicol, Nanjing, Jiangsu, Peoples R China
[4] Nanjing Med Univ, Affiliated Suzhou Hosp, Suzhou Municipal Hosp, Dept Gynecol, Suzhou, Peoples R China
[5] Fudan Univ, Dept Gastroenterol, Zhongshan Hosp, Shanghai, Peoples R China
[6] Nanjing Med Univ, Huaian Peoples Hosp 1, Huaian, Peoples R China
[7] Nanjing Univ, Sch Business, Nanjing, Jiangsu, Peoples R China