Methods Eight hundred metres fast walking on a flat ground and semisupine cycling exercise test were performed in 18 patients randomly programmed to VVIR or VVI pacing mode and compared.
方法18例老年患者
具频率应答(VVIR)与无频率应答(VVI)状态下做800米快速行走及症状记和
卧位踏车运
评价。
词条纠错
X
VVI
生词本：
添加笔记：
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，部译
