Obstetric management of incompetent cervix and bulging fetal membranes. J Reproductive Med 1996 Apr;41(4):235-238.
Emergency cervical cerclage: a study between duration of cerclage in situ with gestation at cerclage, herniation of forewaters, and cervical dilatation at presentation. Eur J Obstet Gynecol Reprod Biol 1998 May;78(1):63-67.
Preterm premature rupture of membranes: risks of recurrent complications in the next pregnancy among a population-based sample of gravid women. Am J Obstet Gynecol 2003 Jan;188(1):209-213.
Fetal Medicine Foundation Second Trimester Screening Group. Cervical cerclage for prevention of preterm delivery in women with short cervix: randomised control trial. Lancet 2004 Jun;363(9424):1849-1853.