title: Data on linkage between the locus determining placental alkaline phosphatase (Pl) and other markers.
mesh_terms: D000469:Alkaline Phosphatase; D001789:Blood Group Antigens; D002874:Chromosome Mapping; D004739:England; D005260:Female; D005954:Glucosephosphate Dehydrogenase; D006801:Humans; D010920:Placenta / Q000201:enzymology*; D011247:Pregnancy; D011676:Punched-Card Systems; D012723:Sex; D014427:Twins
chemical_list: D001789:Blood Group Antigens; D005954:Glucosephosphate Dehydrogenase; D000469:Alkaline Phosphatase