1. Northumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital, Rake Lane, North Shields, Tyne and Wear, United Kingdom
2. The Medical School, Newcastle University, Newcastle-upon-Tyne, United Kingdom
3. Department of Nursing, Midwifery and Health, Northumbria University, Newcastle-upon-Tyne, United Kingdom
4. Faculty of Medicine, University of Lisbon, Portugal
5. Institute of Health and Society, Newcastle University, Newcastle-upon-Tyne, United Kingdom