TY  - RPRT
TI  - Combined spinal-epidural needle (CSEN)
AU  - J Eldor
AU  - G Chaimsky
PY  - 1988
DO  - 10.1007/bf03026909
UR  - https://pubmed.ncbi.nlm.nih.gov/3168138/
ID  - 3168138
ER  -