Khaliq, R.Z., Manzoor, Y., Shehzad, M. and Zaman, T. 2022. A comprehensive review of the classification of fibromyalgia, its possible genetic and environmental causes, and its epidemiology in Pakistan. International Journal of Natural Medicine and Health Sciences. 2, 1 (Dec. 2022), 43–47. DOI:https://doi.org/10.52461/ijnms.v2i1.1366.