The impact of surgeons' experience and practice on postoperative cervical collar use after single-level anterior cervical discectomy and fusion: a cross-sectional survey in Heilongjiang province, China. - Liu, Chang; Wang, Kun; Jie, Chenggang; Yin, Xiaolin; Zhou, Yiting; Zhao, Wei; Xu, Jiaxing (BMC Musculoskeletal Disorders, 2025)