TY  - RPRT
TI  - Analgesic blocks.
AU  - R G Black
AU  - J J Bonica
PY  - 1973
DO  - 10.1080/00325481.1973.11713460
UR  - https://pubmed.ncbi.nlm.nih.gov/4701606/
ID  - 4701606
ER  -