TY  - RPRT
TI  - Tramadol revisited.
AU  - K Budd
AU  - R Langford
PY  - 1999
DO  - 10.1093/bja/82.4.493
UR  - https://pubmed.ncbi.nlm.nih.gov/10472210/
ID  - 10472210
ER  -