[On the problem of avoidable maternal mortality. A comparison of the statistics of the Federal Republic from 1952 to 1959 and the Universitaets-Frauenklinik Koeln from 1940 to 1960].
D035843:Biomedical Research; D006801:Humans; D008428:Maternal Mortality / Q000517:prevention & control*
MATERNAL MORTALITY/prevention and control