1. Department of Information Management; Chien Hsin University of Science and Technology; 229 Chien-Hsin Road Taoyuan 320 Taiwan
2. Graduate Institute of Biomedical Informatics; Taipei Medical University; 250 Wuxing Street Taipei City 110 Taiwan
3. College of Software; Nankai University; 94 Weijin Road Nankai District 300071 China