1. E-Da Hospital, Kaohsiung, Taiwan
2. Geriatric Care Research Center, Xiamen Medical College, Xiamen, Fujian, China
3. Department of Voice Medicine, Zhongshan Hospital Xiamen University, Xiamen, Fujian, China
4. Yu-Sheng Speech Language Communication Rehabilitation Center, Taipei, Taiwan
5. MacKay Memorial Hospital, Taipei, Taiwan