Familial trifascicular block.
D000219:Adams-Stokes Syndrome / Q000235:genetics; D000328:Adult; D002037:Bundle-Branch Block / Q000235:genetics*; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000235:genetics; D006801:Humans; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000235:genetics; D010375:Pedigree; D013019:South Africa; D044465:White People