(The SANS Institute, Bethesda, MD, www.sans.org) A membership organization devoted to computer security founded in 1989.
A bundle branch block is a defect of the bundle branches or fascicles in the electrical conduction system of the heart. bundle branch block is a defect of the bundle branches or fascicles in the electrical conduction system of the heart.
1 bundle branch block, bilateral. 2  bundle branch block, bilateral. 3  bundle branch block, complete. 4  bundle branch block, complete. 5  bundle branch block, complete. 6  bundle branch block, complete. 7  bundle branch block, complete. 8  bundle branch block, incomplete. 9  bundle branch block, incomplete.