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

File: <base>/training/ningbo/g25/JS34946.hea (748 bytes) 
JS34946 12 500 5000
JS34946.mat 16x1+24 1000.0(0)/mV 16 0 63 12134 0 I
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JS34946.mat 16x1+24 1000.0(0)/mV 16 0 49 20740 0 aVF
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JS34946.mat 16x1+24 1000.0(0)/mV 16 0 273 -7790 0 V2
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JS34946.mat 16x1+24 1000.0(0)/mV 16 0 10 18827 0 V4
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JS34946.mat 16x1+24 1000.0(0)/mV 16 0 185 29502 0 V6
# Age: 89
# Sex: Female
# Dx: 251146004,427393009
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown