TY  - RPRT
TI  - Epidural narcotics and dural puncture.
AU  - D B Welch
PY  - 1981
DO  - 10.1016/s0140-6736(81)90174-4
UR  - https://pubmed.ncbi.nlm.nih.gov/6109101/
ID  - 6109101
ER  -