1. University of Oxford; Nuffield Department of Population Health; Oxford UK
2. Universidade do Extremo Sul Catarinense; Laboratory of evidence-based practice; Criciuma Santa Catarina Brazil
3. Universidade Federal de Sao Paulo; Department of Internal Medicine; Sao Paulo Brazil
4. King's College London, Cicely Saunders Institute; Department of Palliative Care, Policy and Rehabilitation; London UK