title: Effect of the norethisterone minipill on the plasma levels of biologically and immunologically active luteinizing hormone in women.
mesh_terms: D000328:Adult; D001681:Biological Assay; D005260:Female; D006801:Humans; D007986:Luteinizing Hormone / Q000097:blood* / Q000276:immunology; D008598:Menstruation; D009640:Norethindrone / Q000008:administration & dosage / Q000009:adverse effects / Q000494:pharmacology*; D011374:Progesterone / Q000097:blood; D011863:Radioimmunoassay; D013997:Time Factors
chemical_list: D011374:Progesterone; D007986:Luteinizing Hormone; D009640:Norethindrone