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. 2000 Jan 1;320(7226):39–42. doi: 10.1136/bmj.320.7226.39
1628 William Harvey describes the circulation
1785 William Withering publishes an account of medical use of digitalis
1819 René Laennec invents the stethoscope
1895 Wilhelm Röntgen discovers x rays
1920 Organomercurial diuretics are first used
1954 Inge Edler and Hellmuth Hertz use ultrasound to image cardiac structures
1958 Thiazide diuretics are introduced
1967 Christiaan Barnard performs first human heart transplant
1987 CONSENSUS-I study shows unequivocal survival benefit of angiotensin converting enzyme inhibitors in severe heart failure
1995 European Society of Cardiology publishes guidelines for diagnosing heart failure