Lagoo, Jui Yeshavant, Moses Charles D’Souza, and Kutappa Muthanna Appanervanda. “Percutaneous Tracheostomy by Griggs Technique: A Retrospective Analysis”. International Journal of Research in Medical Sciences 3, no. 3 (January 7, 2017): 738–742. Accessed September 26, 2025. https://www.msjonline.org/index.php/ijrms/article/view/1367.