Academic potential clinical academic careers cognitive dissonance confirmation bias counter-transference data saturation Death and dying distress protocol Eating disorders Emergency Department End of life care ethics Ethnography Focus groups generalisability interviews long-term conditions member checking mental health nursing Networking Nottingham University Palliative care Patricia Benner PhD PhD scholarship placement qualitative descriptive qualitative research reading habit research questions semi-structured interviews snowball sampling Southampton University student nurse student retention transference Traumatic death