PT - JOURNAL ARTICLE AU - Sunita Rai AU - Alina Andreea Ionescu TI - A 44-year-old, Caucasian, male nonsmoker with worsening difficulty in breathing and decreased exercise tolerance AID - 10.1183/20734735.001317 DP - 2017 Jun 01 TA - Breathe PG - 117--122 VI - 13 IP - 2 4099 - http://breathe.ersjournals.com/content/13/2/117.short 4100 - http://breathe.ersjournals.com/content/13/2/117.full SO - Breathe2017 Jun 01; 13