Methotrexate plus narrow band ultraviolet B (NBUVB) versus methotrexate alone in the treatment of moderate to severe plaque psoriasis: A randomized clinical trial. (2016). Nepal Journal of Dermatology, Venereology & Leprology, 13(1), 12-23. https://doi.org/10.3126/njdvl.v13i1.14298