Sung Hak Lee

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The Catholic University of Korea

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Catholic University of Korea School of Medicine

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Hallym University Medical Center

The Catholic University of Korea

Seoul National University Hospital

Uijeongbu Saint Mary's Hospital

The Catholic University of Korea

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The Catholic University of Korea

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The Catholic University of Korea

The Catholic University of Korea

The Catholic University of Korea

University of Texas Southwestern Department of Surgery

Yonsei University College of Medicine

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Sungkyunkwan University

Seoul National University Hospital

The Catholic University of Korea

The Catholic University of Korea

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Seoul St. Mary's hospital