Adverse outcomes of frailty in the older population of Costa Rica. Acta Médica Costarricense , [S. l.], v. 61, n. 4, 2019. DOI: 10.51481/amc.v61i4.1047. Disponível em: https://actamedica.medicos.cr/index.php/Acta_Medica/article/view/1047. Acesso em: 16 jun. 2026.