“…9,10,15,18,19,22,23 In all 23 studies, the diagnosis of MI was based on a classic clinical history together with diagnostic electrocardiographic changes, including Q waves, ST-segment elevation, and T-wave changes, or, in patients who did not survive long enough to undergo an electrocardiogram, autopsy findings. In the 13 most recent studies, [1][2][3][4][5][6][7]15,16,[20][21][22][23][24][25][26][27][28][29][30] elevated serum concentrations of enzymes (serum aspartate transaminase and lactate dehydrogenase) were also used.…”