Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan. swl@mail.tygh.gov.tw.|Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan. lshwu@hotmail.com.|Department of Computer Science and Engineering, Yuan Ze University, Taoyuan, Taiwan. koko5696@gmail.com.|Department of Computer Science and Engineering, Yuan Ze University, Taoyuan, Taiwan. kaiyao.tw@gmail.com.|Department of Computer Science and Engineering, Yuan Ze University, Taoyuan, Taiwan. francis@saturn.yzu.edu.tw.|Department of Computer Science and Engineering, Yuan Ze University, Taoyuan, Taiwan. julweng@saturn.yzu.edu.tw.