Dunleavy, L., Preston, N., Bajwah, S., Bradshaw, A., Cripps, R., Fraser, L. K., …Walshe, C. (2021). ‘Necessity is the mother of invention’: Specialist palliative care service innovation and practice change in response to COVID-19. Results from a multinational survey (CovPall). Palliative Medicine, 35(5), 814-829. https://doi.org/10.1186/ISRCTN16561225