Siddique, Umara, et al. “Efficacy and Safety of NB-UVB Vs Methotrexate in Chronic Plaque Psoriasis- A Comparative Study”. Annals of King Edward Medical University, vol. 26, no. 3, Dec. 2020, pp. 436-42, doi:10.21649/akemu.v26i3.4127.