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OTTO, CATHERINE M.. (2004). TEXTBOOK OF CLINICAL ECHOCARDIOGRAPHY (FOURTH EDITION). PHILADHELPIA: Saunders Elsevier.

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OTTO, CATHERINE M.. TEXTBOOK OF CLINICAL ECHOCARDIOGRAPHY. FOURTH EDITION PHILADHELPIA: Saunders Elsevier, 2004. Text.

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OTTO, CATHERINE M.. TEXTBOOK OF CLINICAL ECHOCARDIOGRAPHY. FOURTH EDITION PHILADHELPIA: Saunders Elsevier, 2004. Text.

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OTTO, CATHERINE M.. TEXTBOOK OF CLINICAL ECHOCARDIOGRAPHY. FOURTH EDITION PHILADHELPIA: Saunders Elsevier, 2004. Print.