TY - JOUR AU - Rode, L; Klein, K; Nicolaides, K H TI - Prevention of preterm delivery in twin gestations (PREDICT): a multicenter, randomized, placebo-controlled trial on the effect of vaginal micronized progesterone JO - Ultrasound Obstet Gynecol VL - 38 PY - 2011 L3 - PubMed-ID: 21739497 SP - 272 EP - 280 ER -