Switch to unified view

a b/mit-bih-malignant-ventricular-ectopy-database-1.0.0/427.hea-
1
427 2 250 525000
2
427.dat 212 200 12 0 -128 21014 0 record 427, signal 0
3
427.dat 212 200 12 0 17 31678 0 record 427, signal 1