Bilal, A., Khan, S., Iqbal, M. I., Qureshi, F. S., Fazal, M. O., Shaheen, M., & Iqbal, S. (2009). Effect of Vitamin D Replacement in Patients of Fibromyalgia. Annals of Punjab Medical College, 3(1), 51-58. https://doi.org/10.29054/apmc/2009.595