1 School of Nursing and Midwifery, College of Health, Medicine and Wellbeing, University of Newcastle, Australia. Electronic address: Allison.cummins@Newcastle.edu.au.
2 School of Nursing and Midwifery, College of Health, Medicine and Wellbeing, University of Newcastle, Australia; Faculty Academic Quality and Development, Centre for Midwifery and Women's Health Research, Auckland University of Technology, New Zealand.