Factors related to birth weight and perinatal mortality.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001724:Birth Weight; D001827:Body Height; D005260:Female; D005865:Gestational Age; D006801:Humans; D007226:Infant Mortality; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D008297:Male; D010298:Parity; D011225:Pre-Eclampsia / Q000401:mortality; D011247:Pregnancy; D012306:Risk; D012907:Smoking; D012959:Socioeconomic Factors