“Predicting Outcomes in Posterior Lumbar Interbody Fusion Surgery Using the Kaplan-Feinstein Comorbidity Index”. Bangladesh Journal of Neurosurgery 14, no. 2 (April 23, 2026): 85–89. Accessed July 3, 2026. https://banglajol.info/index.php/BJNS/article/view/89023.