[1] Oetianjin Univ TCM, Affiliated Hosp 2, Dept Surg Anaesthesia, Tianjin, Peoples R China
[2] Nantong Univ, Dongtai Hosp Affiliated, Dept Nursing, Dongtai, Jiangsu, Peoples R China
[3] Harbin Med Univ, Canc Hosp, Dept Gynaecol, Ward 3, 150 Haping Rd, Harbin 150040, Heilongjiang, Peoples R China
[4] Oetianjin Univ TCM, Affiliated Hosp 2, Dept Gynaecol, Tianjin, Peoples R China