1. Department of Internal Medicine; Far Eastern Memorial Hospital; Banciao District New Taipei City Taiwan
2. College of Medicine; Fu Jen Catholic University; New Taipei City Taiwan
3. Department of Otolaryngology; Far Eastern Memorial Hospital; Banciao District New Taipei City Taiwan
4. Department of Internal Medicine; National Taiwan University Hospital; Taipei Taiwan
5. Graduate Institute of Epidemiology and Preventive Medicine, College of Public Health; National Taiwan University; Taipei Taiwan