PT - JOURNAL ARTICLE AU - Ivo A. Wiertz AU - Coline H.M. van Moorsel AU - Adriane D.M. Vorselaars AU - Marian J.R. Quanjel AU - Jan C. Grutters TI - Cyclophosphamide in steroid refractory unclassifiable idiopathic interstitial pneumonia and interstitial pneumonia with autoimmune features (IPAF) AID - 10.1183/13993003.02519-2017 DP - 2018 Jan 01 TA - European Respiratory Journal PG - 1702519 4099 - http://erj.ersjournals.com/content/early/2018/02/15/13993003.02519-2017.short 4100 - http://erj.ersjournals.com/content/early/2018/02/15/13993003.02519-2017.full