PAJAR-Pan American Journal of Aging Research; Vol. 1 No. 1 (2013); 16-19 PAJAR-Pan-American Journal of Aging Research; Vol. 1 Núm. 1 (2013); 16-19 PAJAR-Pan-American Journal of Aging Research; v. 1 n. 1 (2013); 16-19 PAJAR-Pan American Journal of Aging Research Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS) instacron:PUCRS