title: Letter: Bovine thymin.
mesh_terms: D000818:Animals; D002417:Cattle; D006728:Hormones / Q000302:isolation & purification*; D010455:Peptides / Q000302:isolation & purification; D009626:Terminology as Topic; D013949:Thymus Extracts / Q000302:isolation & purification*
chemical_list: D006728:Hormones; D010455:Peptides; D013949:Thymus Extracts