User's guide to research in palliative care: why is a new series needed?
Carlson
Melissa D A
MD
National Palliative Care Research Center, New York, New York, USA. melissa.carlson@mssm.edu
Morrison
R Sean
RS
D017408:Guidelines as Topic; D010166:Palliative Care; D016032:Randomized Controlled Trials as Topic; D012107:Research Design