Prospective urethral-pressure study across pregnancy and delivery (1982). Measured urethral pressure serially during pregnancy and postpartum, documenting reduced pressure and length parameters after vaginal delivery.2
Anterior repair versus Burch colposuspension study (1988). Prospectively assessed clinical and urodynamic outcomes after anterior vaginal repair and Burch colposuspension for stress incontinence.3
van Geelen JM, Lemmens WAJG, Eskes TKAB, et al. "The urethral pressure profile in pregnancy and after delivery in healthy nulliparous women." American Journal of Obstetrics and Gynecology. 1982;144(6):636–649. doi:10.1016/0002-9378(82)90431-8↩
van Geelen JM, Theeuwes AGM, Eskes TKAB, et al. "The clinical and urodynamic effects of anterior vaginal repair and Burch colposuspension." American Journal of Obstetrics and Gynecology. 1988;159(1):137–144. doi:10.1016/0002-9378(88)90509-1↩