1 School of Health Sciences, University of Dundee, City Campus, 11 Airlie Place, Dundee, DD1 4HJ, UK. j.r.boehnke@dundee.ac.uk.
2 Faculty of Science, School of Psychology, Quality of Life Office, The University of Sydney, Sydney, Australia.
3 Faculty of Medicine and Health, Susan Wakil School of Nursing and Midwifery, Cancer Nursing Research Unit (CNRU), The University of Sydney, Sydney, Australia.