References
- Final report of the Medical Research Council/Royal College of Obstetricians and Gynaecologists multicentre randomised trial of cervical cerclage. MRC/RCOG Working Party on Cervical Cerclage. Br J Obstet Gynaecol 1993; 100: 516–23.
- Stewart AL, Rifkin L, Amess PN, Kirkbride V, Townsend JP et al. Brain structure and neurocognitive and behavioural function in adolescents who were born very preterm. Lancet 1999; 353: 1653–7.
- Wolke D, Meyer R. Cognitive status, language attainment, and prereading skills of 6-year-old very preterm children and their peers: the Bavarian Longitudinal Study. Dev Med Child Neurol 1999; 41: 94–109.
- Undertaking Systematic Research on Effectiveness. CRD’s Guidance for Carrying Out or Commissioning Reviews. CRD Report Number 4, 2nd edn. 2000.
- Althuisius SM, Dekker GA, Hummel P, Bekedam DJ, van Geijn HP. Final results of the cervical incompetence prevention randomized cerclage trial (CIPRACT): therapeutic cerclage with bed rest versus bed rest alone. Am J Obstet Gynecol 2001; 185: 1106–12.
- Dor J, Shalev J, Mashiach S, Blankstein J, Serr DM. Elective cervical suture of twin pregnancies diagnosed ultrasonically in the first trimester following induced ovulation. Gynecol Obstet Invest 1982; 13: 55–60.
- Lazar P, Gueguen S, Dreyfus J, Renaud R, Pontonnier G, Papiernik E. Multicentred controlled trial of cervical cerclage in women at moderate risk of preterm delivery. Br J Obstet Gynaecol 1984; 91: 731–5.
- Rush RW, Isaacs S, McPherson K, Jones L, Chalmers I, Grant A. A randomized controlled trial of cervical cerclage in women at high risk of spontaneous preterm delivery. Br J Obstet Gynaecol 1984; 91: 724–30.
- Rust OA, Atlas RO, Reed J, van Gaalen J, Balducci J. Revisiting the short cervix detected by transvaginal ultrasound in the second trimester: why cerclage therapy may not help. Am J Obstet Gynecol 2001; 185: 1098–105.
- Szeverenyi M, Chalmels J, Grant A, Nagy T, Nagy J et al. Surgical cerclage in the treatment of cervical incompetence during pregnancy (determining the legitimacy of the procedure). Orv Hetil 1992; 133: 1823–6.
- Schulz KF. Grimes DA. Generation of allocation sequences in randomised trials: chance, not choice. Lancet 2002; 359: 515–9.
- Schulz KF. Grimes DA. Allocation concealment in randomised trials: defending against deciphering. Lancet 2002; 359: 614–8.
- Egwuatu VE. Cervical Ligation in the treatment of incompetent cervix in Nigerian women. Cent Afr J Med 1984; 30: 216–25.
- Cobo E, Conde-Agudelo A, Delgado J, Canaval H, Congote A. Cervical cerclage. an alternative for the management of placenta previa? Am J Obstet Gynecol 1998; 179: 122–5.
- Interim report of the Medical Research Council/Royal College of Obstetricians and Gynaecologists multicentre randomized trial of cervical cerclage. MRC/RCOG Working Party on Cervical Cerclage. Br J Obstet Gynaecol 1988; 95: 437–45.
- Rust OA, Atlas RO, Jones KJ, Benham BN, Balducci J. A randomized trial of cerclage versus no cerclage among patients with ultrasonographically detected second-trimester preterm dilatation of the internal os. Am J Obstet Gynecol 2000; 183: 830–5.
- Owen J, Yost N, Berghella V, Thom E, Swain M et al. Mid-trimester endovaginal sonography in women at high risk for spontaneous preterm birth. JAMA 2001; 286: 1340–8.