[Evaluation of calcium and phosphorus nutrition in residents of Beijing].
Feng
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D002118:Calcium / Q000097:blood*; D002136:Calcium, Dietary / Q000008:administration & dosage*; D002681:China; D006801:Humans; D009749:Nutrition Surveys; D010758:Phosphorus / Q000032:analysis / Q000097:blood*; D012494:Sampling Studies
D002136:Calcium, Dietary; D010758:Phosphorus; D002118:Calcium