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

File: <base>/training/cpsc_2018/g4/A3777.hea (669 bytes) 
A3777 12 500 14683
A3777.mat 16x1+24 1000.0(0)/mV 16 0 -14 51 0 I
A3777.mat 16x1+24 1000.0(0)/mV 16 0 1 -62 0 II
A3777.mat 16x1+24 1000.0(0)/mV 16 0 15 21 0 III
A3777.mat 16x1+24 1000.0(0)/mV 16 0 7 30 0 aVR
A3777.mat 16x1+24 1000.0(0)/mV 16 0 -15 2 0 aVL
A3777.mat 16x1+24 1000.0(0)/mV 16 0 8 -41 0 aVF
A3777.mat 16x1+24 1000.0(0)/mV 16 0 17 -43 0 V1
A3777.mat 16x1+24 1000.0(0)/mV 16 0 -5 91 0 V2
A3777.mat 16x1+24 1000.0(0)/mV 16 0 -3 44 0 V3
A3777.mat 16x1+24 1000.0(0)/mV 16 0 -15 28 0 V4
A3777.mat 16x1+24 1000.0(0)/mV 16 0 -19 4 0 V5
A3777.mat 16x1+24 1000.0(0)/mV 16 0 -11 75 0 V6
# Age: 92
# Sex: Male
# Dx: 284470004
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown