1. Sleep Center, Department of Pulmonary and Critical Care Medicine; Chang Gung Memorial Hospital; Taoyuan Taiwan
2. Centre for Sleep Health and Research, Department of Respiratory Medicine; Royal North Shore Hospital; Sydney NSW Australia
3. Sydney Medical School; University of Sydney; Sydney NSW Australia
4. Sleep Center, Department of Craniofacial Orthodontics; Chang Gung Memorial Hospital; Taoyuan Taiwan
5. Department of Pulmonary and Critical Care Medicine; Chang Gung Memorial Hospital; Chiayi Taiwan
6. Department of Respiratory Therapy; Chang Gung University; Taoyuan Taiwan