Jetender Maheshwari, Noreen Maqbool Bokhari, Muhammad Shahzad Hafeez, Hizbullah, Niaz Ahmed, Saeed Taj Din, “Effects of Vitamin D Supplementation on Fatigue and Disease Activity in Systemic Lupus Erythematous”, Pakistan Journal of Medical & Health Sciences, vol. 17, no. 12, p. 377, Dec. 2023.