Não informado. (1969). Recurring Bibliography of Hypertension. American Heart Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Recurring Bibliography of Hypertension. New York: American Heart Association, 1969.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Recurring Bibliography of Hypertension. American Heart Association, 1969.
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