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

File: <base>/training/ptb-xl/g3/HR02503.hea (750 bytes) 
HR02503 12 500 5000
HR02503.mat 16x1+24 1000.0(0)/mv 16 0 -25 -20654 0 I
HR02503.mat 16x1+24 1000.0(0)/mv 16 0 -35 185 0 II
HR02503.mat 16x1+24 1000.0(0)/mv 16 0 -10 20850 0 III
HR02503.mat 16x1+24 1000.0(0)/mv 16 0 30 10276 0 aVR
HR02503.mat 16x1+24 1000.0(0)/mv 16 0 -7 -20462 0 aVL
HR02503.mat 16x1+24 1000.0(0)/mv 16 0 -22 10773 0 aVF
HR02503.mat 16x1+24 1000.0(0)/mv 16 0 150 12742 0 V1
HR02503.mat 16x1+24 1000.0(0)/mv 16 0 245 28914 0 V2
HR02503.mat 16x1+24 1000.0(0)/mv 16 0 245 23387 0 V3
HR02503.mat 16x1+24 1000.0(0)/mv 16 0 455 11731 0 V4
HR02503.mat 16x1+24 1000.0(0)/mv 16 0 -420 -15409 0 V5
HR02503.mat 16x1+24 1000.0(0)/mv 16 0 -220 12306 0 V6
# Age: 51
# Sex: Male
# Dx: 164865005,164884008
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown