Paudyal, B. P., and M. Gyawalee. “Clinical Characteristics and Co-Morbidities in Patients With Psoriatic Arthritis”. Nepal Journal of Dermatology, Venereology &Amp; Leprology, vol. 15, no. 1, Aug. 2017, pp. 39-43, doi:10.3126/njdvl.v15i1.18052.