9NAGELE F, KARAS H, SPITZER D, et al. Closure or nonclosure of the viseral peritoneum at cesarean delivery[J]. Am J Obstet Gynecol, 1996, 174 (4): 1366.
10HULL DB, VANNER MW. A randomized study of the peritoneum at delivery [J]. Obstet Gynecol, 1991, 77(6): 818.