Undernutrition in elderly people.
Rapin
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CH
D000368:Aged; D000369:Aged, 80 and over; D006304:Health Status; D006801:Humans; D009748:Nutrition Disorders / Q000523:psychology; D009752:Nutritional Status; D010353:Patient Education as Topic; D011502:Protein-Energy Malnutrition / Q000523:psychology