ECG of intra-atrium blockage

Comments

aiyo for a second there i ter-ingat zaman zaman dulu u kena dera belajar ecg dgn saya...haha
But i still can remember until now,so worth kena dera,haha,terima kasih!!!
haha itu wave wave things sometimes really terrible.. but i am happy you manage to do it!!! hehe because you are Siew JIng!!!

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