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In 1-3 minutes, an
oxymeter gives heart rate and the percent of oxygen saturation in arterial
blood. More, sex hormones as by child’s age assayed in saliva can provide
interesting information on maturation.
See Prado-León et al. (2001) among many related works like Avila-Curiel
et al. (1998). With children under 5 years, they found 26.2 % of 6,059
indigenous, 16.02 % of 4,738 mixed and 11.66 % of 16,483 nonindigenous
children with severe malnutrition. Since 1974, anthropometric research has
been conducted by Encuestra Nacional de Alimentación en el Medio Rural
Mexicano of Instituto Nacional de la Nutrición Salvador Zubirán, Mexico
City.
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