[Epidemiology of premature birth].
D005260:Female; D005859:Germany, East; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D008423:Maternal Age; D007752:Obstetric Labor, Premature / Q000453:epidemiology* / Q000209:etiology; D009790:Occupations; D011247:Pregnancy; D013312:Stress, Physiological
Zur Epidemiologie der Frühgeburtlichkeit.