title: The apparent free cortisol concentration and the free cortisol index: a comparative study.
mesh_terms: D005260:Female; D006801:Humans; D006854:Hydrocortisone / Q000097:blood*; D011247:Pregnancy; D011485:Protein Binding; D011863:Radioimmunoassay
chemical_list: D006854:Hydrocortisone