@article{article274c07cf,
title   = {Characteristics of undiagnosed COPD in a senior community center},
author = {Santos, Simeão Rodrigo dos and Lizzi, Elisangela Aparecida da Silva and Vianna, Elcio dos Santos Oliveira},
year = {2014},
doi = {10.2147/COPD.S49521},
journal   = {International Journal of Chronic Obstructive Pulmonary Disease (COPD)}
}