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heart attack; myocardial infarction
父が心筋梗塞で倒れた。
My father collapsed from a heart attack.
心筋梗塞の予防には食生活の改善が大切だ。
Improving one's diet is important for preventing heart attacks.
心筋梗塞を経験して食生活を改めるようになった。
After experiencing a heart attack, he began to improve his diet.