[1] Cent South Univ, Xiangya Sch Med, Dept Parasitol, Changsha 410013, Hunan, Peoples R China
[2] Hunan Prov Maternal & Child Hlth Care Hosp, Dept Neonatol, Changsha 410013, Hunan, Peoples R China
[3] Cent South Univ, Xiangya Hosp 3, Dept Gen Surg 1, Changsha 410013, Hunan, Peoples R China