Affiliation: | (1) Department of Clinical Laboratory, Tsuchiura Kyodo Hospital, Ibaraki, Japan;(2) Department of Surgery, Tsuchiura Kyodo Hospital, Ibaraki, Japan;(3) Department of Anesthesiology, Tsuchiura Kyodo Hospital, Ibaraki, Japan;(4) Institute of Clinical Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan |