[Certain aspects of prematurity in the last 50 years].
D005260:Female; D006801:Humans; D007226:Infant Mortality; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007234:Infant, Premature; D008297:Male; D009774:Obstetrics / Q000379:methods; D011247:Pregnancy
Einige Aussagen zur Frühgeburtlichkeit der letzten 50 Jahre