Delnord M, Hindori-Mohangoo AD, Smith LK, et al: Variations in very preterm birth rates in 30 high-income countries: are valid international comparisons possible using routine data. B]OG 124(5):785,t201
Di Mascio D, Magro-Malosso ER, Saccone G, et al: Exercise during pregnancy in normal-weight women and risk of preterm birth: a systematic review and meta-analysis of randomized controlled trials. Am ] Obstet Gynecol 215(5):561,t2016
Dolan SM, Gross S], Merkatz lR, et al: The contribution of birth defects to preterm birth and low birth weight. Obstet Gynecol 110:318, 2007
Donders GG, Van Calsteren K, Bellen G, et al: Predictive value for preterm birth of abnormal vaginal flora, bacterial vaginosis and aerobic vaginitis during the irst trimester of pregnancy. B]OG 116(10): 1315, 2009
Donovan BM, Spracklen CN, Schweizer ML, et al: Intimate partner violence during pregnancy and the risk for adverse infant outcomes: a systematic review and meta-analysis. B]OG 123(8):1289,t2016
Doyle L W, Crowther CA, Middleton S, et al: Magnesium sulfate for women at risk of preterm birth for neuroprotection of the fetus. Cochrane Database Syst Rev 1:CD004661, 2009
Dutra EH, Behnia F, Boldogh I, et al: Oxidative stress damage-associated molecular signaling pathways diferentiate spontaneous preterm birth and preterm premature rupture of the membranes. Mol Hum Reprod 22(2): 143, 2016
Eichenwald EC, Stark AR: Management and outcomes of very low birth weight. N Engl] Med 358(16):1700, 2008
El-Bastawissi AY, Williams MA, Riley DE, et l: Amniotic fluid interleukin-6 and preterm delivery: a review. Obstet Gynecol 95: 1 056, 2000
Elimian A, Garry D, Figueroa R, et al: Antenatal betamethasone compared with dexamethasone (Betacode Trial): a randomized controlled trial. Obstet Gynecol 110:26, 2007
EI-Sayed Y, Riley ET, Holbrook RH, et al: Randomized comparison of intravenous nitroglycerin and magnesium sulfate for treatment of preterm labor. Obstet GynecoIt93:79, 1999
Esplin MS: The importance of clinical phenotype in understanding and preventing spontaneous preterm birth. Amt] Perinatol 33(3):236, 2016
Esplin MS, Elovitz A, lams ]D, et al: Predictive accuracy of serial transvaginal cervical lengths and quantitative vaginal fetal ibronectin levels for spontaneous preterm birth among nulliparous women.t]AMA 317(10):1047,t2017
Esplin MS, Varner MW: Genetic factors in preterm birth-the future. B]OG 112 (Supplt1):97, 2005
FanarofA, Stoll B], Wright LL, et al: Trends in neonatal morbidity and mortality for very low birthweight infants. Am J Obstet Gynecol 196:e1.147, 2007