Heart Rhythm UK position statement on clinical indications for implantable cardioverter defibrillators in adult patients with familial sudden cardiac death syndromes. by Garratt, C, Elliott, P, Behr, E, Camm, A, Cowan, C, Cruickshank, S, Grace, A, Griffith, M, Jolly, A, Lambiase, P, McKeown, P, O'Callagan, P, Stuart, G, Watkins, H