Gartland 0, MacArthur C, Woolhouse H, et al: Frequency, severiry and risk factors for urinary and faecal incontinence at 4 years postpartum: a prospective cohort. BJOG 123(7):1203,r2016
Gurol-Urganci I, Cromwell DA, Edozien LC, et al: hird-and fourth-degree perineal tears among primiparous women in England between 2000 and 2012: time trends and risk factors. BJOG 120(12):1516,r2013
Gyhagen M, Bullarbo M, Nielsen T, et al: The prevalence of urinary incontinence 20 years after childbirth: a national cohort study in singleton primiparae after vaginal or caesarean delivery. BJOG 120:144,r2013
Hagadorn-Freathy AS, Yeomans ER, Hankins GO: Validation of the 1988 ACOG forceps classiication system. Obstet Gynecol 77:356, 1991
Halpern SH, Muir H, Breen W, et al: A multicenter randomized controlled trial comparing patient-controlled epidural with intravenous analgesia for pain relief in labor. Anesth Analg 99(5):1532,2004
Halscott TL, Reddy UM, Landy HJ, et al: Maternal and neonatal outcomes by attempted mode of operative delivery from a low station in the second stage of labor. Obstet GynecoIr126(6):1265, 2015
Hamilton BE, Martin JA, Osterman MJ, et al: Births: final data for 2014. Nat!
Vital Stat Rep 64(12):1, 2015
Handa L, Blomquist JL, McDermott KC, et al: Pelvic floor disorders after vaginal birth: efect of episiotomy, perineal laceration, and operative birth. Obstet Gynecol 119(2 Pt 1):233,2012
Hirayama F, Koyanagi A, Mori R, et al: Prevalence and risk factors for thirdand fourth-degree perineal lacerations during vaginal delivery: a multicountry study. BJOG 119(3):340,2012
Hirsch E, Haney EI, Gordon TE, et al: Reducing high-order perineal laceration during operative vaginal delivery. AmJ Obstet GynecoIr198(6):668.e1, 2008
Hofmeyr GJ, Gobetz L, Sonnendecker EW, et al: New design rigid and soft vacuum extractor cups: a preliminary comparison of traction forces. BJOG 97(8):681, 1990
Kudish B, Blackwell S, Mcneeley SG, et al: Operative vaginal delivery and midline episiotomy: a bad combination for the perineum. Am J Obstet Gynecol 195(3):749,r2006
Kuit JA, Eppinga HG, Wallenburg HCS, et al: A randomized comparison of vacuum extraction delivery with a rigid and a pliable cup. Obstet Gynecol 82:280, 1993
Kyser L, Lu X, Santillan 0, et al: Forceps delivery volumes in teaching and nonteaching hospitals: are volumes suicient for physicians to acquire and maintain competence? Acad Med 89(1):71, 2014
Landy HJ, Laughon SK, Bailit JL, et al: Characteristics associated with severe perineal and cervical lacerations during vaginal delivery. Obstet Gynecol 117(3):627,r201r1