[It is the tune which provides the diagnosis].
Meijler
F L
FL
Burchell
H B
HB
D000328:Adult; D002037:Bundle-Branch Block / Q000151:congenital / Q000175:diagnosis* / Q000191:economics; D004562:Electrocardiography; D005260:Female; D006801:Humans; D007348:Insurance, Health
C'est le ton qui fait le diagnostic.