A proposal for a reference standard preparation for the hypothalamic thyrotrophic hormone releasing factor.
D000818:Animals; D001681:Biological Assay; D001688:Biological Products; D002417:Cattle; D007031:Hypothalamus; D066298:In Vitro Techniques; D013972:Thyrotropin
D001688:Biological Products; D013972:Thyrotropin