1. Institute of Nursing and Health Research, Ulster University, Coleraine, United Kingdom.
2. School of Psychology, Ulster University, Magee Campus, Londonderry, United Kingdom.
3. Department of Clinical Chemistry, Altnagelvin Hospital, Londonderry, United Kingdom.
4. Clinical Sciences Institute, National University of Ireland, Galway, Ireland.
5. Directorate of Nursing, Western Health and Social Care Trust, Altnagelvin Hospital, Londonderry, United Kingdom.