1. Department of Vascular and Thyroid, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China
2. Department of Neurology, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China
3. Department of Pediatrics, Nanchong Central Hospital, Nanchong, Sichuan 637000, China
4. Department of Lymphoma and Myeloma, University of Texas MD Anderson Cancer Center, Houston, Texas 77054, USA