“Preoperative Sonography Efficacy for Cholecystoscopy Cannula Orientation, Evaluation on Pigs”. Revista Argentina de Cirugía 110, no. 1 (March 28, 2021): 33–36. Accessed August 31, 2026. https://revista.aac.org.ar/index.php/RevArgentCirug/article/view/170.