Jisho

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房室
Wikipedia definition
1. Heart blockA heart block is a disease in the electrical system of the heart. This is opposed to coronary artery disease, which is disease of the blood vessels of the heart. While coronary artery disease can cause angina (chest pain) or myocardial infarction (heart attack), heart block can cause lightheadedness, syncope, and palpitations.
Read “Heart block” on English Wikipedia
Read “房室ブロック” on Japanese Wikipedia
Read “Heart block” on DBpedia

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