At each meeting of the Pan American Health Organization Advisory Committee on Medical Research, a special one-day session is held on a topic chosen by the Committee as being of particular interest. At the Fourth Meeting, which convened in June 1965 in Washington, D.C., the session focused on deprivation as a factor in psychobiological development. This volume records the papers presented and the accompanying discussions.

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Carencia Cultural; Trastornos Nutricionales; Psicofisiología; Factores Socioeconómicos