1 School of Nursing, Midwifery and Social Care, Edinburgh Napier University, Edinburgh EH11 4BN, United Kingdom. Electronic address: I.Atherton@napier.ac.uk.
2 OHSU School of Nursing, 3455 SW Veterans Hospital Rd., 4-S, Portland, OR 97239, USA. Electronic address: lasaterk@ohsu.edu.
3 School of Nursing, Purdue University, West Lafayette, USA. Electronic address: earichar@purdue.edu.
4 OHSU School of Nursing, 3455 SW Veterans Hospital Rd., 4-S, Portland, OR 97239, USA. Electronic address: mathewsl@ohsu.edu.
5 School of Nursing, Purdue University, West Lafayette, USA. Electronic address: vsimpson@purdue.edu.
6 School of Nursing, Midwifery and Social Care, Edinburgh Napier University, Edinburgh EH11 4BN, United Kingdom. Electronic address: R.Kyle@napier.ac.uk.