title: Immunoassay by electrochemical techniques.
mesh_terms: D000818:Animals; D002417:Cattle; D004958:Estradiol / Q000032:analysis*; D004964:Estriol / Q000032:analysis*; D006241:Haptens / Q000032:analysis; D007118:Immunoassay; D007074:Immunoglobulin G / Q000032:analysis*; D011048:Polarography; D011199:Potentiometry
chemical_list: D006241:Haptens; D007074:Immunoglobulin G; D004958:Estradiol; D004964:Estriol