The progress of the physiologic sciences has been relatively slow in their investigation of certain periods of early life. The problems of infant nutrition, for example, have scarcely attracted less attention than have those of adult life; but until recently the earlier stages of childhood have had comparative neglect from students of human well being. Some of the reasons for this seeming indifference toward our adolescent population lie in the difficulties of investigation. The infant is under complete personal control, owing to its inability to shift for itself. The school child has developed a degree of intelligence that makes its cooperation reasonably easy to secure in many scientific investigations. Within the intermediate age groups there are obvious difficulties of management under the ordinary routine of child life. The growing organization of preschool training in this country has, however, afforded new possibilities that are rapidly being utilized in the study of
THE PROTEIN INTAKE OF PRESCHOOL CHILDREN. JAMA. 1933;101(2):128–129. doi:10.1001/jama.1933.02740270032015
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