Nutrition and malnutrition. Identification and measurement. Definition of the problem.
D000367:Age Factors; D000886:Anthropometry; D002648:Child; D002664:Child Nutritional Physiological Phenomena; D002675:Child, Preschool; D004463:Ecology; D004777:Environment; D005069:Evaluation Studies as Topic; D005823:Genetics; D006128:Growth; D006801:Humans; D007223:Infant; D008403:Mass Screening; D009748:Nutrition Disorders / Q000453:epidemiology / Q000209:etiology; D009747:Nutritional Physiological Phenomena; D009765:Obesity / Q000453:epidemiology; D011153:Population; D011502:Protein-Energy Malnutrition / Q000453:epidemiology; D012494:Sampling Studies; D012959:Socioeconomic Factors