Effects of Dispatcher‐Assisted Public‐Access Defibrillation Programs on the Outcomes of Out‐of‐Hospital Cardiac Arrest: A Before‐and‐After Study oleh Chien‐Hsiung Huang, Cheng‐Yu Chien, Chip‐Jin Ng, Shao‐Yu Fang, Ming‐Fang Wang, Chi‐Chun Lin, Chen‐Bin Chen, Li‐Heng Tsai, Kuang‐Hung Hsu, Sherry Yueh‐Hsia Chiu