title: A comparative study of avian & ovine radioimmunoassay systems for estimation of serum luteinizing hormone in domestic hens.
mesh_terms: D000818:Animals; D002645:Chickens / Q000276:immunology; D005260:Female; D007986:Luteinizing Hormone / Q000097:blood*; D011863:Radioimmunoassay / Q000379:methods; D012756:Sheep / Q000276:immunology
chemical_list: D007986:Luteinizing Hormone