1. Division of Occupational Medicine, E-Da Hospital, I-Shou University, Kaohsiung 82445, Taiwan
2. Division of Surgical Intensive Care, Department of Critical Care Medicine, E-Da Hospital, I-Shou University, Kaohsiung 82445, Taiwan
3. Department of Nursing, Fooyin University. Kaohsiung 831301, Taiwan
4. Institute of Environmental and Occupational Health Sciences, College of Public Health, National Taiwan University, Taipei 10055, Taiwan
5. Global Health Program, College of Public Health, National Taiwan University, Taipei 10055, Taiwan
6. Institute of Statistical Science, Academia Sinica, Taipei 11529, Taiwan
7. Department of Environmental and Occupational Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei 10002, Taiwan
8. Division of Cardiology, Department of Internal Medicine, National Taiwan University College of Medicine, Taipei 10002, Taiwan
9. The Experimental Forest, National Taiwan University, Nantou 557, Taiwan