Affiliation: | 1. Department of Plasmabiodisplay, Kwangwoon University, Seoul, 139-701, Korea 2. Department of General Education, Kwangwoon University, 20 KwangWoon-ro, Nowon-gu, Seoul, 139-701, Korea 3. Department of Hospital Management, International Univetsity of Korea, Seoul, 459-721, Korea
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