QURESHI, Osama Ahmed; 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. Journal of the Pakistan Medical Association, [S. l.], v. 76, n. 8, p. 1248–1251, 2026. DOI: 10.47391/JPMA.22651. Disponível em: https://www.jpma.org.pk/index.php/public_html/article/view/22651. Acesso em: 11 aug. 2026.