Causes and Evaluation of Chronic Dyspnea
STEVEN A. WAHLS, MD, Oregon Health & Science University, Portland, Oregon
http://www.aafp.org/afp/2012/0715/p173.html
Am Fam Physician. 2012 Jul 15;86(2):173-180.

A Stepwise Approach to the Interpretation of Pulmonary Function Tests
JEREMY D. JOHNSON, MD, MPH, Tripler Army Medical Center, Honolulu, Hawaii
WESLEY M. THEURER, DO, MPH, Madigan Army Medical Center, Fort Lewis, Washington
http://www.aafp.org/afp/2014/0301/p359.html
Am Fam Physician. 2014 Mar 1;89(5):359-366.