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Kazuhiro Ota
The 2nd Department of Internal Medicine, Osaka Medical College, Japan
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Toshihisa Takeuchi
The 2nd Department of Internal Medicine, Osaka Medical College, Japan
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Masahiko Aoki
The 2nd Department of Internal Medicine, Osaka Medical College, Japan
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Kazuhide Higuchi
The 2nd Department of Internal Medicine, Osaka Medical College, Japan