Immediate beta-blockers: 21 trials - Curtis - Singh - Gupta - Norris - Roberts - Nigam - Gupta - Mueller - Hutton - Norris - Peter - Barber - Pitt - Dotremont - Kahler - Ledwich - Norris - Sloman - Balcon - Clausen - Multicentre
Long term beta-blockers: 5 trials - Aronow - BHAT - Hansteen - Baber - Wilcox