Will Two Do? Varying Dimensions in Electrocardiography: The PhysioNet/Computing in Cardiology Challenge 2021 1.0.3

File: <base>/training/chapman_shaoxing/g1/JS00643.hea (725 bytes) 
JS00643 12 500 5000
JS00643.mat 16x1+24 1000.0(0)/mV 16 0 -122 11799 0 I
JS00643.mat 16x1+24 1000.0(0)/mV 16 0 -68 8402 0 II
JS00643.mat 16x1+24 1000.0(0)/mV 16 0 54 -3136 0 III
JS00643.mat 16x1+24 1000.0(0)/mV 16 0 98 -4022 0 aVR
JS00643.mat 16x1+24 1000.0(0)/mV 16 0 -88 1359 0 aVL
JS00643.mat 16x1+24 1000.0(0)/mV 16 0 -10 -3533 0 aVF
JS00643.mat 16x1+24 1000.0(0)/mV 16 0 44 -336 0 V1
JS00643.mat 16x1+24 1000.0(0)/mV 16 0 83 18557 0 V2
JS00643.mat 16x1+24 1000.0(0)/mV 16 0 39 13018 0 V3
JS00643.mat 16x1+24 1000.0(0)/mV 16 0 5 7624 0 V4
JS00643.mat 16x1+24 1000.0(0)/mV 16 0 39 8979 0 V5
JS00643.mat 16x1+24 1000.0(0)/mV 16 0 10 9914 0 V6
# Age: 89
# Sex: Male
# Dx: 164889003
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown