TY  - RPRT
TI  - Epidural versus intravenous fentanyl: a problem with small sample size.
AU  - R Slover
AU  - S K Palmer
PY  - 1991
DO  - 10.1097/00000542-199104000-00034
UR  - https://pubmed.ncbi.nlm.nih.gov/2008964/
ID  - 2008964
ER  -