1 Faculty of Medicine, Universiti Teknologi MARA (Sungai Buloh), Selangor, Malaysia.
2 Geriatrics Unit, Selayang Hospital, Selangor, Malaysia.
3 Department of Geriatric Medicine, Mercy University Hospital, Cork, Ireland.
4 Health Research Board Clinical Research Facility, University College Cork, Cork, Ireland.
5 School of Nursing and Midwifery, Aras Moyola, National University of Ireland Galway, Galway, Ireland.
6 CIBERFES (Área temática de Fragilidad y Envejecimiento Saludable del Centros de Investigación Biomédica en Red), Instituto de Salud Carlos III, Madrid, Spain.
7 Department of Endocrinology, National University of Ireland Galway, Galway, Ireland.