Khadka, Dhan Keshar, S Agrawal, and T K Dhali. 2016. “Methotrexate Plus Narrow Band Ultraviolet B (NBUVB) Versus Methotrexate Alone in the Treatment of Moderate to Severe Plaque Psoriasis: A Randomized Clinical Trial”. Nepal Journal of Dermatology, Venereology &Amp; Leprology 13 (1):12-23. https://doi.org/10.3126/njdvl.v13i1.14298.