title: Nutrients, endpoints, and the problem of proof.
authors: Creighton University, Omaha, NE 68131, USA. rheaney@creighton.edu
authors: Robert P
authors: RP
authors: Heaney
mesh_terms: D003677:Deficiency Diseases / Q000209:etiology* / Q000517:prevention & control; D023381:Endpoint Determination; D006801:Humans; D018673:Nutrition Policy; D052756:Nutritional Sciences / Q000592:standards* / Q000639:trends; D012107:Research Design