Background to perinatal health.
D000328:Adult; D001238:Asphyxia Neonatorum / Q000401:mortality; D000013:Congenital Abnormalities / Q000401:mortality; D005260:Female; D005313:Fetal Death / Q000453:epidemiology* / Q000209:etiology; D014943:Global Health; D006801:Humans; D007226:Infant Mortality; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D008423:Maternal Age; D010298:Parity; D010500:Perinatology / Q000592:standards*; D011247:Pregnancy; D012923:Social Class; D006113:United Kingdom