Objective: Study the variability of QT dispersion before and after exercise stress test and its clinical significance.

目的：探讨运动试验前后QT离散度的变化及意义。

youdao

Objective: Study the variability of QT dispersion before and after exercise stress test and its clinical significance.

目的：探讨运动试验前后QT离散度的变化及意义。

youdao