title: A double antibody radioimmunoassay specific for placental alkaline phosphatase.
mesh_terms: D000469:Alkaline Phosphatase / Q000032:analysis* / Q000097:blood / Q000302:isolation & purification; D000918:Antibody Specificity; D004591:Electrophoresis, Polyacrylamide Gel; D005260:Female; D006801:Humans; D007122:Immunoelectrophoresis; D010920:Placenta / Q000201:enzymology*; D011233:Precipitin Tests; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D011863:Radioimmunoassay / Q000379:methods
chemical_list: D000469:Alkaline Phosphatase