Deb, A., B. Songtanin, T. Thongtan, and S. Islam. “Collagenous Gastritis Presenting As Chronic Heartburn in a Patient With Psoriatic Arthritis”. The Southwest Respiratory and Critical Care Chronicles, Vol. 10, no. 45, Oct. 2022, pp. 67-70, doi:10.12746/swrccc.v10i45.1105.