9Horowita EL, Yogev YW, Ben- Harowsh AT, et al. Urine cuture at removal of indwelling catheter after cesarean section. Internantional Journal of Gynecology and Obsetrics,2004,85:276-278
10Schwartz MA, Wang CC, Eckert LO, et al. Risk factors for urinary tract infection in the postpartum period. Am J Obstet Gynecol, 1999,181:547 -553