Respiratory distress syndrome in twins.
D001344:Autopsy; D001724:Birth Weight; D004200:Diseases in Twins / Q000235:genetics*; D005260:Female; D005865:Gestational Age; D006801:Humans; D006819:Hyaline Membrane Disease / Q000235:genetics; D007231:Infant, Newborn; D008297:Male; D012127:Respiratory Distress Syndrome, Newborn / Q000235:genetics*; D013223:Statistics as Topic