1 Research Facility Center for Morphology, 209 Tong Shan Road, Xuzhou Medical College, Xuzhou, Jiangsu, 221004, China.
2 Department of Thoracic Cardiovascular Surgery, Affiliated Hospital of Xuzhou Medical College, 99 West Huaihai Road, Xuzhou, Jiangsu, 221002, China.
3 Research Center for Biochemistry and Molecular Biology and Provincial Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical College, Xuzhou, Jiangsu, 221004, China.
4 Research Facility Center for Morphology, 209 Tong Shan Road, Xuzhou Medical College, Xuzhou, Jiangsu, 221004, China. Electronic address: dhy@xzhmu.edu.cn.
5 Department of Thoracic Cardiovascular Surgery, Affiliated Hospital of Xuzhou Medical College, 99 West Huaihai Road, Xuzhou, Jiangsu, 221002, China. Electronic address: zhang_zhongming@xzmc.edu.cn.