TY - GEN AU - MacKenzie,Ross TI - Left axis deviation SN - 0743-6661 PY - 2005///1129 KW - Adult KW - Bundle-Branch Block KW - diagnosis KW - Electrocardiography KW - Heart Defects, Congenital KW - Humans KW - Male KW - Ontario KW - Risk Adjustment N1 - Publication Type: Case Reports; Journal Article ER -