عيد ا., سمير كنعان, and علي علّوش. “Assessment of Factors Predicting Difficult Laparoscopic Cholecystectomy Preoperatively”. Tishreen University Journal -Medical Sciences Series, vol. 46, no. 2, June 2024, pp. 191-03, https://journal.tishreen.edu.sy/index.php/hlthscnc/article/view/16848.