[Quantitative determination of the alpha-feto-protein in the practice of perinatal medicine. 1st communication: the physiology of the alpha-feto-protein and its quantitative proof by means of electrophoresis in antibody containing gel according to Laurell (author's transl)].

The alpha-feto-protein (AFP) ist described on the basis of the available literature; its diagnostic use up to the present is outlined, and an immunological method of its quantitative determination is presented. The results obtained by quantitating the level of AFP in the cord serum of 50 mature newborns (-x = 9,9 mg/100 ml) are in good agreement with other reports.