1 Dept. of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan; Dept. of Biomedical Informatics and Medical Education, University of Washington, Seattle, USA.
2 Dept. of Computer Science and Information Engineering, National Taiwan University, Taipei, Taiwan.
3 Dept. of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan.
4 Dept. of Biomedical Informatics and Medical Education, University of Washington, Seattle, USA; Dept. of Health Services, University of Washington, Seattle, USA. Electronic address: amturner@uw.edu.