BLEEK, H [Comparative electrophoretigrams of retroplacental and umbilical vein blood proteins immediately following birth]. [electronic resource] - Klinische Wochenschrift Apr 1951 - 257-60 p. digital Publication Type: Journal Article ISSN: 0023-2173 Standard No.: 10.1007/BF01479472 doi Subjects--Topical Terms: Blood ProteinsFemaleHumansParturitionUmbilical Veins