Narayanadas, Arpitha, G Ashwini, and Romesh Thokala. “A Classification and Regression Tree Analysis for Prediction of Surgical Patient Lengths of Stay”. History of Medicine/ru 8, no. 2 (April 30, 2022). Accessed February 26, 2025. https://historymedjournal.com/HOM/index.php/medicine/article/view/447.