title: The radioimmunoassay: an assay that revolutionized medicine.
authors.forename: Keith A
authors.initials: KA
authors.lastname: Hansen
mesh_terms: D006063:Chorionic Gonadotropin / Q000097:blood*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis; D011863:Radioimmunoassay
chemical_list: D006063:Chorionic Gonadotropin