Tuty Swarni Sinaga, Jhon Roby Purba. Benefits of stretching for lumbar mobility disorders at Murni Teguh Hospital Medan . IJCSI [Internet]. 2026 Sep. 24 [cited 2026 Sep. 29];4(2). Available from: https://afdifaljournal.com/journal/index.php/ijcsi/article/view/1189