TY  - RPRT
TI  - Nerve blocks and chronic pain states--an update. 1. Basic considerations.
AU  - S F Brena
PY  - 1985
DO  - 10.1080/00325481.1985.11699139
UR  - https://pubmed.ncbi.nlm.nih.gov/4034455/
ID  - 4034455
ER  -