title: Absence of seasonal rhythm of serum thyrotropin (TSH) in the male laboratory rat.
mesh_terms: D000818:Animals; D003080:Cold Temperature; D008297:Male; D010507:Periodicity; D051381:Rats; D012621:Seasons; D013972:Thyrotropin / Q000097:blood*
chemical_list: D013972:Thyrotropin