[1] Hebei Univ, Affiliated Hosp, Dept Nursing, Baoding City 071000, Peoples R China
[2] Hebei Univ, Affiliated Hosp, Dept Integrated Tradit Chinese & Western Med, Baoding City 071000, Peoples R China
[3] Hebei Univ, Gen Surg Dept, Affiliated Hosp, 212 Yuhua East Rd, Baoding City 071000, Peoples R China
[4] Hebei Univ, Affiliated Hosp, Dept Gynecol, 212 Yuhua East Rd, Baoding 071000, Peoples R China