1. Dept of Medicine, Trinity College Dublin, College Green, Dublin 2, Ireland
2. Endocrine Department, Midlands Regional Hospital, Mullingar, Co Westmeath, Ireland
3. Stroke Medicine/Medicine for the elderly, Midlands Regional Hospital, Mullingar, Co Westmeath, Ireland
4. Department of Radiology, Stroke Medicine/Medicine for the elderly, Midlands Regional Hospital, Mullingar, Co Westmeath, Ireland