Nazir, Shazal, et al. “Frequency of Piriformis Syndrome Among Female Physiotherapy Students of Gujranwala, Pakistan: Piriformis Syndrome Among Female Physiotherapy Students”. Pakistan BioMedical Journal, vol. 5, no. 1, Jan. 2022, pp. 103-7, https://doi.org/10.54393/pbmj.v5i1.175.