Ansari, Hamna, Mubeena Abdul Qayyum, Saima Abdul Waheed, Humera Bibi, Arooj Nawaz, and Tahrim Ansar. 2026. “Anatomical Variations of the Circle of Willis and Their Clinical Significance: A Systematic Review: Anatomical Variations of the Circle of Willis and Their Clinical Significance”. Pakistan Journal of Health Sciences 7 (6). Pakistan:164-71. https://doi.org/10.54393/pjhs.v7i6.3889.