Tariq Nawaz, Maryam Barkat, Muhammad Atif, Qasim Ali. “Vascular Surprises in Calot’s Triangle During Laproscopic Choleystectomy”. Journal of Rawalpindi Medical College, vol. 21, no. 4, Dec. 2017, https://journalrmc.com/index.php/JRMC/article/view/808.