title: Letter: Heart block in repair of ventricular septal defect.
mesh_terms: D001283:Atrioventricular Node; D002036:Bundle of His; D006325:Heart Atria / Q000601:surgery; D006327:Heart Block / Q000209:etiology* / Q000517:prevention & control; D006345:Heart Septal Defects, Ventricular / Q000601:surgery*; D006801:Humans; D008722:Methods; D011183:Postoperative Complications; D013536:Suture Techniques