1. Department of Nursing Taipei Medical University Hospital Taipei Taiwan
2. School of Nursing, Faculty of Science, Medicine and Health University of Wollongong Wollongong New South Wales Australia
3. School of Nursing, LKS Faculty of Medicine The University of Hong Kong Pokfulam Hong Kong
4. School of Nursing, College of Nursing Taipei Medical University Taipei Taiwan
5. Research Center of Sleep Medicine, College of Medicine Taipei Medical University Taipei Taiwan