Nutrient effects: discrepancy between data from controlled trials and observational studies.
Heaney
R P
RP
Creighton University, Omaha, NE 68178, USA.
D015519:Bone Density / Q000187:drug effects; D002136:Calcium, Dietary / Q000008:administration & dosage / Q000592:standards; D018849:Controlled Clinical Trials as Topic / Q000592:standards; D004032:Diet / Q000592:standards; D002149:Energy Intake / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D009747:Nutritional Physiological Phenomena / Q000502:physiology*
D002136:Calcium, Dietary