1. Computer Center, Hsin Sheng Junior College of Medical Care and Management, No. 418, Zhongfeng Road, Sec. Gaoping, Longtan District, Taoyuan City 325, Taiwan
2. Department of Information Management, Shih Hsin University, No. 1, Lane 17, Sec. 1, Muja Road, Wenshan Chiu, Taipei 116, Taiwan