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Hur, Seo Am; Guler, Sabina A.; Khalil, Nasreen; Camp, Pat G; Guenette, Jordan A; Swigris, Jeffrey J; Ryerson, Christopher J (2019). Minimal Important Difference for Physical Activity and Validity of the International Physical Activity Questionnaire in Interstitial Lung Disease. Annals of the American Thoracic Society, 16(1), pp. 107-115. American Thoracic Society 10.1513/AnnalsATS.201804-265OC
