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

File: <base>/training/st_petersburg_incart/g1/I0074.hea (761 bytes) 
I0074 12 257 462600
I0074.mat 16x1+24 1000.0(0)/mv 16 0 -2382 25832 0 I
I0074.mat 16x1+24 1000.0(0)/mv 16 0 -1766 -20461 0 II
I0074.mat 16x1+24 1000.0(0)/mv 16 0 2348 11475 0 III
I0074.mat 16x1+24 1000.0(0)/mv 16 0 1922 21737 0 aVR
I0074.mat 16x1+24 1000.0(0)/mv 16 0 -2407 -9184 0 aVL
I0074.mat 16x1+24 1000.0(0)/mv 16 0 324 -15053 0 aVF
I0074.mat 16x1+24 1000.0(0)/mv 16 0 1108 -19645 0 V1
I0074.mat 16x1+24 1000.0(0)/mv 16 0 466 26529 0 V2
I0074.mat 16x1+24 1000.0(0)/mv 16 0 1407 -28655 0 V3
I0074.mat 16x1+24 1000.0(0)/mv 16 0 979 20654 0 V4
I0074.mat 16x1+24 1000.0(0)/mv 16 0 1575 27312 0 V5
I0074.mat 16x1+24 1000.0(0)/mv 16 0 -975 -19605 0 V6
# Age: 66
# Sex: Male
# Dx: 13640000,427084000,164884008,164865005
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown