RT Journal Article SR Electronic T1 Seven-and-a-half syndrome JF Practical Neurology JO Pract Neurol FD BMJ Publishing Group Ltd SP 250 OP 251 DO 10.1136/pn-2023-003982 VO 24 IS 3 A1 Xu, Zhihong A1 Zhao, Yuying A1 Yan, Chuanzhu A1 Ji, Kunqian YR 2024 UL http://pn.bmj.com/content/24/3/250.abstract AB