1. Department of Imaging, Yantaishan Hospital, Yantai 264000, China
2. Department of Imaging, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai 26400, China
3. Department of Neurology (I), Affiliated Qingdao Central Hospital, Qingdao University, Qingdao 266042, China
4. Department of Neurology (III), The Fourth People’s Hospital of Jinan, Jinan 250031, China