GalfinJM, WatkinsE, HarlowT: Psychological distress and rumination in palliative care patients and their caregivers. J Palliat Med, 2010; 13:1345–1348.
2.
SmithKA, GoyER, HarvathTA, GanziniL: Quality of death and dying in patients who request physician-assisted death. J Palliat Med, 2011; 14:445–450.