1. Faculty of Health Sciences, Centre for Healthy Ageing and Wellness (H-CARE), Speech Sciences Programme, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
2. Department of Rehabilitation, School of Allied Health Sciences, Kitasato University, Kanagawa, Japan
3. Faculty of Health Sciences, Speech Sciences Programme, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
4. Communication Sciences and Disorders, College of Health and Human Services, Rockhurst University, Kansas City, Missouri, USA