Perinatal mortality in Wales.
D001238:Asphyxia Neonatorum / Q000453:epidemiology; D001720:Birth Injuries / Q000453:epidemiology; D003032:Coal Mining; D000013:Congenital Abnormalities / Q000453:epidemiology; D004739:England; D005260:Female; D005313:Fetal Death / Q000453:epidemiology*; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D007234:Infant, Premature; D011247:Pregnancy; D012424:Rural Population; D012923:Social Class; D014505:Urban Population; D014852:Wales