TY  - RPRT
TI  - Challenges for palliative care research.
AU  - Joan D Penrod
AU  - R Sean Morrison
PY  - 2004
DO  - 10.1089/1096621041349392
UR  - https://pubmed.ncbi.nlm.nih.gov/15265346/
ID  - 15265346
ER  -