[Maternal mortality up to the 28th week of pregnancy in the years 1961-1966].
D000024:Abortion, Illegal; D000029:Abortion, Legal; D000328:Adult; D003604:Czechoslovakia; D005260:Female; D006801:Humans; D008428:Maternal Mortality; D008875:Middle Aged; D011247:Pregnancy; D011248:Pregnancy Complications / Q000401:mortality
Umrtí matek do 28. týdne tĕhotenství v letech 1961-1966.