Ultimately 242 received the investigational device (Bryan Cervical Disc), and 221 patients underwent a single-level anterior cervical discectomy and decompression and fusion as a control group.
最终242名患者接受了进行研究的设备（Bryan间盘），221名患者作为对照组进行了单纯的间盘切除及减压与融合。
Ultimately 242 received the investigational device (Bryan Cervical Disc), and 221 patients underwent a single-level anterior cervical discectomy and decompression and fusion as a control group.
最终242名患者接受了进行研究的设备（Bryan间盘），221名患者作为对照组进行了单纯的间盘切除及减压与融合。
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