1. Division of Cardiology, Department of Internal Medicine, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi City, Taiwan
2. Chung Jen Junior College of Nursing, Health Sciences and Management, Chiayi County, Taiwan
3. Min-Hwei Junior College of Health Care Management, Tainan City, Taiwan
4. Graduate Institute of Long-term Care, Tzu Chi University of Science and Technology, Hualien City, Taiwan
5. Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
6. Department of Environmental and Occupational Health, National Cheng Kung University, Tainan City, Taiwan
7. Department of Occupational and Environmental Medicine, National Cheng Kung University Hospital, Tainan City, Taiwan