Sajid Ali, Muhammad Zubair, Ahmad Shamim Khan, Sidra Zaman, Alishba Ali, Sawera Iftikhar 2022. Evaluation of Hypovitaminosis D in different age and gender groups in Khyber Pakhtunkhwa Pakistan. Pakistan Journal of Medical & Health Sciences. 16, 05 (Jun. 2022), 742. DOI:https://doi.org/10.53350/pjmhs22165742.