[He, Chiyi; He, CY; Jiang, Hua] Wannan Med Coll, Dept Gastroenterol, Affiliated Hosp 1, Wuhu City 241001, Anhui, Peoples R China.
[Zhang, Bo; Hu, Daojun; Wang, Jun] Shanghai Jiao Tong Univ, Dept Clin Lab, Xinhua Hosp, Sch Med, Shanghai, Peoples R China.
[Ning, Jiyu; Ning, JY] Univ South China, Affiliated Hosp 1, Hengyang Med Sch, 69 Chuanshan Rd, Hengyang City 421001, Hunan, Peoples R China.