[1] Nanjing Med Univ, Affiliated Jiangning Hosp, Dept Emergency, Nanjing 211100, Jiangsu, Peoples R China
[2] Nanjing Med Univ, Dept Gynecol & Obstet, Nanjing 211100, Jiangsu, Peoples R China
[3] Nanjing Med Univ, Affiliated Jiangning Hosp, Dept Hepatol Surg, Nanjing 211100, Jiangsu, Peoples R China
[4] Nanjing Med Univ, Affiliated Jiangning Hosp, Dept Gynecol, 169 Hushan Rd, Nanjing 211100, Jiangsu, Peoples R China