Acta Medica Okayama 1997 ƒEƒV�œ—R—ˆ‘e�¸�»BMP‚ƇTŒ^ƒAƒeƒ�ƒRƒ‰�[ƒQƒ“•¡�‡‘Ì‚É‚æ‚éˆÙ�Š�«�œ—U“±‚ÉŠÖ‚·‚éŠî‘b“IŒ¤‹† EN No potential conflict of interest relevant to this article was reported.