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							Hiroshi KURIYAMA
														
									2nd Department of Surgery, Osaka University Medical School
							 
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							Hiromu HIGASHI
														
									2nd Department of Surgery, Osaka University Medical School
							 
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							Tokuhiro MIYAMOTO
														
									2nd Department of Surgery, Osaka University Medical School
							 
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							Giichi MAEURA
														
									2nd Department of Surgery, Osaka University Medical School
							 
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							Goro KOSAKI
														
									2nd Department of Surgery, Osaka University Medical School