A Retrospective Study: Quick Scoring of Symptoms to Estimate the Risk of Cardiac Arrest in the Emergency Department. - Xu, Yaoke; Zhang, Hua; Zhao, Zongxuan; Wen, Kaifeng; Tian, Ci; Zhai, Qiangrong; Bai, Yi; Li, Shu; Ge, Hongxia; Li, Xiaodan; Zhou, Qidi; Ma, Qingbian (Emergency Medicine International, 2022)