Related by context. Frequent words. (Click for all words.) 61 Tribeca Parenting 56 Giraffe gives 54 baby boomlet 54 Molly Thornberg 53 neonatal morbidity 53 Philly zoo 52 cervical vulvar 51 preterm deliveries 51 hypertensive disorders 51 maternal morbidity 51 Adriana Iliescu 51 teen birthrate 50 illegitimate births 50 low birthweight infants 50 Chlamydia infection 50 CVD mortality 50 contraceptive prevalence 50 intra uterine 49 Preterm birth 49 cesarean deliveries 49 NICHD sponsors research 49 PENN Medicine consists 49 Stillbirths 49 Vital Statistics System 49 Carnethon 49 intracytoplasmic sperm injection ICSI 49 James Grifo 49 fetu 49 perinatal mortality 48 successful embryo biopsy 48 syphilis infections 48 Conjoined twins occur 48 persistent pulmonary hypertension 48 low birthweight babies 48 hyperemesis gravidarum 48 MacDorman 48 Suicidal thoughts 48 Arch Intern Med 48 Mark Bauerlein 48 unexplained infertility 48 captive giant pandas 48 intracytoplasmic sperm injection 48 born preterm 48 Caesarean deliveries 48 Human papillomavirus 48 Genital herpes 48 Secondhand smoke causes 47 CHD mortality 47 Prevention Morbidity 47 preterm births 47 congenital syphilis 47 Cesarean delivery 47 Peanut allergies 47 Bernard Nathanson 47 Partial birth 47 births 47 twin transfusion 47 febrile seizure 47 de aths 47 predisposing factor 47 precocious puberty 46 Sexually transmitted infections 46 scientist Alan Abramowitz 46 Dr. Sherman Silber 46 Octuplets mum obsessed 46 obstetric complications 46 Kamrava clinic 46 bronchopulmonary dysplasia 46 chromosomal disorders 46 premenstrual syndrome PMS 46 neural tube birth defects 46 Oral contraceptives 46 spontaneous preterm birth 46 Marisa Weiss 46 preterm delivery 46 menarche 46 Bibbins Domingo 46 JAMA. 46 Artificial insemination 45 Multiple births 45 Robert Belshe 45 Influenza vaccination 45 caesarean births 45 anal cancers 45 LEE Jong wook 45 Premature ejaculation 45 Gestational diabetes 45 Teenage pregnancies 45 Am J Epidemiol 45 Viagra Sildenafil Citrate 45 meningitis encephalitis 45 D' SOUZA KARKALA CHAD 45 postpartum hemorrhage 45 Progestin 45 extreme prematurity 45 Vitamin D supplementation 45 Premature birth 45 Infant mortality rates 45 Health Statistics NCHS 45 IUGR 45 hepatitis B vaccination