Rebuttal from Drs Courtright and Manaker.
Pulmonary, Allergy, and Critical Care Division, University of Pennsylvania. Electronic address: katherine.courtright@uphs.upenn.edu.
Katherine
K
Courtright
Pulmonary, Allergy, and Critical Care Division, University of Pennsylvania; Department of Medicine, University of Pennsylvania, Philadelphia, PA.
Scott
S
Manaker
D006801:Humans; D006278:Medicare / Q000191:economics*; D029424:Pulmonary Disease, Chronic Obstructive / Q000628:therapy*; D012138:Respiratory Therapy / Q000191:economics*