1. School of Nursing and Midwifery, Faculty of Health: Medicine, Dentistry and Human Sciences, University of Plymouth, Plymouth, Devon, PL4 8AA, UK
2. School of Nursing, Midwifery and Health Practice, Victoria University of Wellington, Wellington, New Zealand
3. NIHR Exeter Clinical Research Facility, Level 2 RILD Building, Royal Devon and Exeter NHS Foundation Trust, Barrack Road, Exeter, EX2 5DW, UK
4. Bradford Institute of Health Research, Bradford Royal Infirmary, Duckworth lane, Bradford, BD9 6RJ, UK
5. School of Nursing and Midwifery, Faculty of Medicine, Nursing and Health Sciences, Monash University, Building E, Peninsula Campus, 47–49 Moorooduc Highway, Frankston, Victoria, 3199, Australia