Pawasuttikul, MD, Chote. 2022. “Effect of Single and Two Level Posterior Instrumented Fusion for L4-5 Degenerative Spondylolisthesis With Adjacent Spinal Stenosis”. Journal of Southeast Asian Orthopaedics 41 (3-4). Bangkok, Thailand:9-16. https://jseaortho.org/index.php/jsao/article/view/69.