Foocharoen, Thanit. 2022. “Biportal Endoscopic Spine Surgery for Single Lumbar Disc Herniation or Lumbar Stenosis: Comparison Between Right and Left Side Approach of Right-Handed Surgeon”. Journal of Southeast Asian Orthopaedics 44 (3-4). Bangkok, Thailand:11-18. https://www.jseaortho.org/index.php/jsao/article/view/27.