Algamdi M, Sadatsafavi M, Fisher JH, Morisset J, Johannson KA, Fell CD, Kolb M, Manganas H, Cox G, Gershon AS, Halayko AJ, Hambly N, Khalil N, Shapera S, To T, Wilcox PG, Guler S, Ryerson CJ. Costs of Workplace Productivity Loss in Patients With Fibrotic Interstitial Lung Disease. Chest. 2019 11; 156(5):887-895.