title: Circadian variations of serum thyrotropin levels in man.
mesh_terms: D000328:Adult; D001322:Autoanalysis; D002940:Circadian Rhythm; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010507:Periodicity; D011863:Radioimmunoassay; D012737:Sex Factors; D012890:Sleep; D013972:Thyrotropin / Q000097:blood*
chemical_list: D013972:Thyrotropin