Ford, E. S. (2015). Trends in mortality from chronic obstructive pulmonary disease among adults in the United States. Chest.
Chicago Style CitationFord, Earl S. "Trends in Mortality From Chronic Obstructive Pulmonary Disease Among Adults in the United States." Chest 2015.
Cita MLAFord, Earl S. "Trends in Mortality From Chronic Obstructive Pulmonary Disease Among Adults in the United States." Chest 2015.
Atenció: Aquestes cites poden no estar 100% correctes.