Suppliers of kits for lutropin, follitropin, and prolactin should all use the same calibrators.
D005640:Follicle Stimulating Hormone / Q000097:blood*; D006801:Humans; D007986:Luteinizing Hormone / Q000097:blood*; D011388:Prolactin / Q000097:blood*; D011933:Reagent Kits, Diagnostic / Q000592:standards*; D012015:Reference Standards
D011933:Reagent Kits, Diagnostic; D011388:Prolactin; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone