Kent EM, Breathnach FM, Gillan JE, et al: Placental pathology, birthweight discordance, and growth restriction in twin pregnancy: results of the ESPRIT Study. Am J Obstet 207(3):220.el, 2012
Kilpatrick SJ, Jackson R, Croughan-Minihane MS: Perinatal mortality in twins and singletons matched for gestational age at delivery at > or = 30 weeks. Am J Obstet Gynecol 174(1 Pt 1):66, 1996
Kim HS, Kim MK, Oh JW, et al: Placental transfer of dexamethasone in twin pregnancy compared to singleton pregnancy. Abstract No. 662. Am J Obstet GynecoIt216(1):S388, 2017
Kim JH, Park SW, Lee JJ: Birth weight reference for triples in Korea. J Korean Med Sci 25:900, 2010
Kindinger LM, Poon LC, Cacciatore S, et al: he efect on gestational age and cervical length measurements in the prediction of spontaneous preterm birth in twin pregnancies: an individual patient level meta-analysis. BJOG 123(6):877,t2016
Klein K, Rode L, Nicolaides KH, et al: Vaginal micronized progesterone and risk of preterm delivery in high-risk twin pregnancies: secondary analysis of a placebo-controlled randomized trial and meta-analysis. Ultrasound Obstet Gynecol 38(3):281, 2011
Knox G, Morley 0: Twinning in Yoruba women. J Obstet Gynaecol Br Emp 67:981,t1960
Kuleva M, Youssef A, Maroni E, et al: Maternal cardiac unction in normal twin pregnancy: a longitudinal study. Ultrasound Obstet Gynecol 38:575, 2011 Kulkarni AD, Jamieson DJ, Jones HW ]r, et al: Fertility treatments and multiple births in the United States. N Engl J Med 369(23):2218,t2013 Langer B, Boudier E, Gasser B, et al: Antenatal diagnosis of brain damage in the survivor after the second trimester death of a monochorionic monoamniotic co-twin: case report and literature review. Fetal Diagn her 12:286, 1997
Lantieri T, Revelli A, Gaglioti P, et al: Superfetation after ovulation induction and intrauterine insemination performed during an unknown ectopic pregnancy. Reprod Biomed Online 20(5):664, 2010 Lappen JR, Hackney ON, Bailit JL: Maternal and neonatal outcomes of attempted vaginal compared with planned cesarean delivery in triplet gestations. Am J Obstet Gynecol 215(4):493.e1, 2016 Lee H, Bebbington M, Crombleholme TM, et al: The North American Fetal herapy Network Registry data on outcomes of radiofrequency ablation for twin-reversed arterial perfusion sequence. Fetal Diagn her 33(4):224, 2013