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							Hisaji Oshima
														
									Department of Connective Tissue Diseases, Tokyo Medical Center, National Hospital Organization
							 
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							Mari Ushicubo
														
									Department of Connective Tissue Diseases, Tokyo Medical Center, National Hospital Organization
							 
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							Ryota Endo
														
									Department of Connective Tissue Diseases, Tokyo Medical Center, National Hospital Organization
							 
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							Kumiko Akiya
														
									Department of Connective Tissue Diseases, Tokyo Medical Center, National Hospital Organization
							 
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							Ikuko Tanaka
														
									Department of Clinical Laboratory, Fujita Health University School of Medicine