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56,686 single births between 1945 and 1980 were evaluated in a retrospective study. The results reflect the change which has taken place in obstetrics. Perinatal mortality dropped in a straight line from 48.50/00 to 17.20/00. At the same time, the frequency of Caesarian section increased in non-linear progression from an initial value of 1.9% (1945-1949) to(More)
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