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

File: <base>/training/ningbo/g3/JS12899.hea (780 bytes) 
JS12899 12 500 5000
JS12899.mat 16x1+24 1000.0(0)/mV 16 0 122 3972 0 I
JS12899.mat 16x1+24 1000.0(0)/mV 16 0 176 -784 0 II
JS12899.mat 16x1+24 1000.0(0)/mV 16 0 54 -4733 0 III
JS12899.mat 16x1+24 1000.0(0)/mV 16 0 -146 4470 0 aVR
JS12899.mat 16x1+24 1000.0(0)/mV 16 0 34 -1811 0 aVL
JS12899.mat 16x1+24 1000.0(0)/mV 16 0 112 -8921 0 aVF
JS12899.mat 16x1+24 1000.0(0)/mV 16 0 20 -995 0 V1
JS12899.mat 16x1+24 1000.0(0)/mV 16 0 39 -237 0 V2
JS12899.mat 16x1+24 1000.0(0)/mV 16 0 83 -14998 0 V3
JS12899.mat 16x1+24 1000.0(0)/mV 16 0 98 -16992 0 V4
JS12899.mat 16x1+24 1000.0(0)/mV 16 0 112 -19494 0 V5
JS12899.mat 16x1+24 1000.0(0)/mV 16 0 -98 18108 0 V6
# Age: 76
# Sex: Male
# Dx: 427172004,111975006,55827005,59931005,164890007,195042002
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown