Qureshi OA, Shehab Beg, Shahab Ghani, Asad Waqar, Tooba Malik, Mohsin Anwer. The role of systemic unfractionated heparin in free flap surgery outcomes: A retrospective study from a tertiary care hospital in Karachi, Pakistan. J Pak Med Assoc [Internet]. 2026 Jul. 12 [cited 2026 Aug. 11];76(8):1248-51. Available from: https://www.jpma.org.pk/index.php/public_html/article/view/22651