Application of electrocardiogram knowledge in emergency care (心电图知识在急诊护理工作中的应用现状) oleh GENG Shenghua (耿胜华), PENG Wei (彭伟), LIU Xinrui (刘馨蕊), XIE Mengdi (谢梦迪), DONG Yanting (董燕婷), GAO Qianqian (高倩倩), ZHANG Qingcheng (张清晨)