1 Department of Pathology, Weifang Heart Hospital, Shandong Province, Weifang 261201, China.
2 Department of Clinical Laboratory, Weifang Heart Hospital, Shandong Province, Weifang 261201, China.
3 Department of Pathology, School of Basic Medical Sciences, Peking University Third Hospital, Peking University Health Science Center, Beijing 100191, China.