[1] Chengdu Med Coll, Sichuan Prov Matern & Child Hlth Care Hosp, Affiliated Womens & Childrens Hosp, Dept Clin Lab, Chengdu, Sichuan, Peoples R China
[2] Shijiazhuang Pingan Hosp, Dept Expt Diagnost, Shijiazhuang, Hebei, Peoples R China
[3] Beijing Ludaopei Hosp, Dept Lab Med, Beijing, Peoples R China
[4] Shijiazhuang Pingan Hosp, Dept Expt Diagnost, 48 Cangfeng Rd, Shijiazhuang 050021, Hebei, Peoples R China
[5] Beijing Ludaopei Hosp, Dept Lab Med, 22 Tongji South Rd,Yizhuang Econ Technol Dev Area, Beijing 100176, Peoples R China