Research Institute of Neuromuscular and Neurodegenerative Diseases and Department of Neurology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.
Address correspondence and reprint requests to Wei Li, MD, Qilu Hospital, Cheeloo College of Medicine, Shandong University, No.107 West Culture Rd, Jinan 250012, China; e-mail: [email protected].
The authors have no funding or conflicts of interest to disclose.
Contributions: (I) Conception and design: W. Li, D. Zhang; (II) Administrative support: W. Li, D. Zhang; (III) Provision of study materials or patients: W. Li, D. Zhang, L. Cao, H. Geng; (IV) Collection and assembly of data: D. Zhang, W. Li, L. Cao, H. Geng; (V) Data analysis and interpretation: D. Zhang, W. Li, H. Geng; (VI) Manuscript writing: all authors; (VII) Final approval of manuscript: all authors.
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