Zhiling Ma MD Cardiology Department of the First Affiliated Hospital of Air Force Military Medical University (Xijing Hospital) ,vice chairman of Youth Committee of electrocardiology branch of Xi'an Medical Association,Since 2012, he has participated in an international cooperation project on genetic consultation and multidisciplinary diagnosis and treatment of hypertrophic cardiomyopathy led by the ultrasound medicine department of Xijing Hospital. He is specifically responsible for the early diagnosis of electrocardiogram, and has published more than 10 articles on electrocardiography in core journals and statistical source journals, and is the young and middle-aged editorial board member of Journal of practical electrocardiology.