?:authorAffiliation
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[\'Public Health Department, Higher University of San Andres, La Paz, Bolivia.\', \'Post-graduate Program of Collective Health, Federal University of Bahia, Salvador, Brazil.\', \'Scientific Society of Medicine Students, Higher University of San Andres, La Paz, Bolivia.\', \'Hospital de ClĂnicas Dr. Manuel Quintela, University of the Republic, Montevideo, Uruguay.\']
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