Back pain was measured by the visual analog scale (vas) within three months preoperatively and at three months (6 - 20 weeks) postoperatively
back pain was measured by the visual analog scale (vas) within three months preoperatively and at three months (6 - 20 weeks) postoperatively
Back pain was measured by the visual analog scale (vas) within three months preoperatively and at three months (6 - 20 weeks) postoperatively
back pain was measured by the visual analog scale (vas) within three months preoperatively and at three months (6 - 20 weeks) postoperatively