Development and validation of a novel nomogram to predict the risk of the prolonged postoperative length of stay for lumbar spinal stenosis patients. - Yasin, Parhat; Cai, Xiaoyu; Mardan, Muradil; Xu, Tao; Abulizi, Yakefu; Aimaiti, Abasi; Yang, Huan; Sheng, Weibin; Mamat, Mardan (BMC Musculoskeletal Disorders, 2023)