1. A 44-year-old, Caucasian, male nonsmoker with worsening difficulty in breathing and decreased exercise tolerance. Issue 2 (June 2017) Authors: Rai, Sunita; Ionescu, Alina Andreea Journal: Breathe Issue: Volume 13:Issue 2(2017) Page Start: 117 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗