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

File: <base>/training/cpsc_2018/g2/A1721.hea (694 bytes) 
A1721 12 500 5000
A1721.mat 16x1+24 1000.0(0)/mV 16 0 -3 -1636 0 I
A1721.mat 16x1+24 1000.0(0)/mV 16 0 1 -448 0 II
A1721.mat 16x1+24 1000.0(0)/mV 16 0 4 1188 0 III
A1721.mat 16x1+24 1000.0(0)/mV 16 0 1 484 0 aVR
A1721.mat 16x1+24 1000.0(0)/mV 16 0 -3 -929 0 aVL
A1721.mat 16x1+24 1000.0(0)/mV 16 0 2 102 0 aVF
A1721.mat 16x1+24 1000.0(0)/mV 16 0 -132 -1593 0 V1
A1721.mat 16x1+24 1000.0(0)/mV 16 0 258 887 0 V2
A1721.mat 16x1+24 1000.0(0)/mV 16 0 -50 1238 0 V3
A1721.mat 16x1+24 1000.0(0)/mV 16 0 -14 -479 0 V4
A1721.mat 16x1+24 1000.0(0)/mV 16 0 177 1907 0 V5
A1721.mat 16x1+24 1000.0(0)/mV 16 0 -162 -1286 0 V6
# Age: 92
# Sex: Female
# Dx: 59118001
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown