Ubaid Ullah Khan, Zhu Ya Lin, Ubaid Ullah, Sajid Ghafoor, Qazi Syed Irfan Ullah Shah, Muhammad Waqas, Saddam Hussain, Junaid Khan 2023. Effect of Serum Vitamin D Content on the Clinical Course of Psoriasis. Pakistan Journal of Medical & Health Sciences. 17, 03 (May 2023), 646. DOI:https://doi.org/10.53350/pjmhs2023173646.