Relation between the ABO blood groups and the level of placental alkaline phosphatase in sera of pregnant women.
D000017:ABO Blood-Group System; D000469:Alkaline Phosphatase / Q000097:blood*; D001789:Blood Group Antigens; D005260:Female; D006801:Humans; D007527:Isoenzymes; D008099:Liver / Q000201:enzymology; D010920:Placenta / Q000201:enzymology*; D011247:Pregnancy; D013696:Temperature
D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D007527:Isoenzymes; D000469:Alkaline Phosphatase