The outcome of twin pregnancies in Dunedin 1968-1978.
D001238:Asphyxia Neonatorum / Q000453:epidemiology; D001724:Birth Weight; D005260:Female; D005865:Gestational Age; D006801:Humans; D007035:Hypothermia / Q000453:epidemiology; D007226:Infant Mortality; D007231:Infant, Newborn; D009520:New Zealand; D011247:Pregnancy; D011272:Pregnancy, Multiple; D014427:Twins