[Vectorcardiographic analysis of left anterior hemiblock (lead according to the Frank system)].
D002037:Bundle-Branch Block / Q000175:diagnosis*; D004562:Electrocardiography; D006801:Humans; D014672:Vectorcardiography / Q000379:methods*
Vektorkardiografski analiv na leviia preden khemiblok (otvezhdane no sistemata na Frank)