PAJAR-Pan American Journal of Aging Research; Vol. 5 No. 1 (2017); 16-22 PAJAR-Pan-American Journal of Aging Research; Vol. 5 Núm. 1 (2017); 16-22 PAJAR-Pan-American Journal of Aging Research; v. 5 n. 1 (2017); 16-22 PAJAR-Pan American Journal of Aging Research Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS) instacron:PUCRS