Effects of the Optimal AV Delay of DDD Pacing on Cardiac Function and Neurohormonal Levels in Patients With Congestive Heart Failure是什麼意思_Effects of the Optimal AV Delay of DDD Pacing on Cardiac Function and Neurohormonal Levels in Patients With Congestive Heart Failure在線翻譯_英語_讀音_用法_例句