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ECG

during exercise
1. ST depression (看J point後2格) 
a. 斜向上 -> 要 >1.5mm 才是positive
b. 水平 -> 要 >1mm 才是positive
c. 斜向下 -> 要 >1mm 才是positive
2. 

after exercise
1. ST depression: exercise後才發生 -> great likehood of CHD!
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