title: Pituitary-thyroid hormone periodicities in serially sampled plasma of unanesthetized rats.
mesh_terms: D000818:Animals; D002940:Circadian Rhythm; D003345:Corticosterone / Q000097:blood; D008297:Male; D010507:Periodicity; D011863:Radioimmunoassay; D051381:Rats; D013972:Thyrotropin / Q000097:blood*; D013974:Thyroxine / Q000097:blood*; D014284:Triiodothyronine / Q000097:blood*
chemical_list: D014284:Triiodothyronine; D013972:Thyrotropin; D013974:Thyroxine; D003345:Corticosterone