title: On the assessment of validity of steroid radioimmunoassays.
mesh_terms: D003429:Cross Reactions; D005260:Female; D005498:Follicular Phase; D006728:Hormones / Q000097:blood*; D006801:Humans; D008183:Luteal Phase; D008297:Male; D009640:Norethindrone / Q000097:blood; D011374:Progesterone / Q000097:blood*; D011863:Radioimmunoassay / Q000379:methods*; D012737:Sex Factors; D013256:Steroids / Q000097:blood*; D013739:Testosterone / Q000097:blood*
chemical_list: D006728:Hormones; D013256:Steroids; D013739:Testosterone; D011374:Progesterone; D009640:Norethindrone