Fuente
Instituto Nacional del Corazón, Pulmón y la Sangre (National Heart Lung and Blood Institute). COPD. Accessed agosto 15, 2012
U.S. National Library of Medicine. Chronic obstructive pulmonary disease. Accessed agosto 15, 2012
COPD: Management of Acute Exacerbations and Chronic Stable Disease by MH Hunter, MD; DE King, MD (American Family Physician agosto 15, 2012, http://www.aafp.org/afp/20010815/603.html)
Escrito por personal editorial de familydoctor.org.
Revisado/actualizado: 07/10
Creado: 08/01