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British Medical Journal logoLink to British Medical Journal
. 1912 Jun 22;1(2686):1421–1423. doi: 10.1136/bmj.1.2686.1421

ELECTRO-CARDIOGRAPHY AND ITS IMPORTANCE IN THE CLINICAL EXAMINATION OF HEART AFFECTIONS

Thomas Lewis
PMCID: PMC2345166  PMID: 20766220

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