1Gawade P,, Markenson G, Bast F, et al. Association of ges- tational weight gain with cesarean delivery rate after labor in duetion[J].J Repmd Med, 2011, 56(3): 95.
10Klein M C, Gauthier R J, Jorgensen S H, et al. Does Epi- siotomy Prevent Perineal Trauma and Pelvic Floor Relaxation [J]. Online J Curt Clin Trials, 1992, 10(1): 6019.
4Jaroslava Karbanova,Zdenek Rusavy,Lucie Betincova,Magdalena Jansova,Antonin Parizek,Vladimir Kalis.??Clinical evaluation of peripartum outcomes of mediolateral versus lateral episiotomy(J)International Journal of Gynecology and Obstetrics . 2014 (1)