3Dodd JM, Flenady VJ, Cinotta R, et al. Progesterone for prevention of preterm birth. Obstet Gynecol, 2008, 112 : 127-134.
4Norman JE, Mackenzie F, Owen P, et al. Progesterone for the prevention of preterm birth in twin pregnancy ( STOPPIT ) : a randomised, double-blind, placebo-controlled study and meta- analysis. Lancet, 2009,373:2034-2040.
5Robert L, Goldenberg MD, William W,et al. Alabama preterm birth study: umbilical cord blood ureaplasma urealyticum and mycoplasma hominis cultures in very preterm newborn infants. Am J Obstet Gynecol, 2008, 198:43 e1-e5.
6King J, Flenady V. Antibiotics for inhibiting preterm labor with intact membranes. Cochrane Database Syst Rev, 2002, CD000246.
7Kenyon S, Boulvain M, Neilson J. Antibiotics for preterm rupture of membranes. Cochrane Database Syst Rev, 2003, CD 001058.
8Kenyon S, Pike K, Jones DR, et al. Childhood outcomes after prescription of antibiotics to pregnant women with preterm rupture of the membranes: 7 year follow-up of ORACLE I trial. Lancet, 2008, 372: 1310-1318.
9Drakeley A, Roberts D, Alfirevic Z. Cervical stich (cerclage) for preventing pregnancy loss in women. Cochrane Database Syst Rev, 2003, CD003253.
10Bachmann L, Coomarasamy A, Honest H, et al. Elective cervical cerclage for prevention of preterm birth. Acta Obstet Gynecol Scand, 2003, 82:398-404.