[Birth environment investigation 1976--1977. I. Material, methods, pregnancy and antenatal preparation].
D003718:Denmark; D005260:Female; D006801:Humans; D007229:Infant Welfare; D007231:Infant, Newborn; D008427:Maternal Health Services; D008429:Maternal Welfare; D008430:Maternal-Child Health Centers; D011247:Pregnancy
Fødselsmiljøundersøgelsen 1976--1977. I. Materiale, metode, graviditet, fødselsforberedelse.