[Pei, Haiping; Zhu, Hong; Yu, Nanhui] Cent S Univ, Dept Gastrointestinal Surg, Xiangya Hosp, 87 Xiangya Rd, Changsha 410008, Hunan, Peoples R China.
[Yu, Nanhui] Changsha Hosp Maternal & Child Hlth Care, Dept Pharm, Changsha 410007, Hunan, Peoples R China.
[Liang, Ying] Cent South Univ Forestry & Technol, Dept Food Sci & Engn, Changsha 410007, Hunan, Peoples R China.
[Mo, Hongying] Changsha Hosp Maternal & Child Hlth Care, Dept Gynaecol, 416 ChengNan East Rd, Changsha 410007, Hunan, Peoples R China.