Mahmood, T., J. Cuevas, I. Huizar, and K. Nugent. “The Effect of Disease Modifying Drugs on the Lung in Patients With Rheumatoid Arthritis”. The Southwest Respiratory and Critical Care Chronicles, Vol. 4, no. 13, Jan. 2016, pp. 3-11, https://pulmonarychronicles.com/index.php/pulmonarychronicles/article/view/248.