Intermittent antegrade hyperkalaemic warm blood cardioplegia supplemented with magnesium prevents myocardial substrate derangement in patients undergoing coronary artery bypass surgery. - Caputo,M.; Bryan,A.J.; Calafiore,A.M.; Suleiman,M.S.; Angelini,G.D. (Eur J Cardiothorac Surg, 1998)