1. Department of Nephrology, The Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
2. Department of Ultrasound, The Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
3. Department of Neurology, The Affiliated Xuzhou Central Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China