[Rate of spontaneous abortion in early pregnancy].
D000022:Abortion, Spontaneous / Q000453:epidemiology*; D000328:Adult; D003430:Cross-Sectional Studies; D005260:Female; D005860:Germany, West; D006801:Humans; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D012307:Risk Factors
Spontanabortrate in der Frühschwangerschaft.