TY  - RPRT
TI  - A simple chronic pain complexity score.
AU  - D Natusch
AU  - I Selby
PY  - 1999
DO  - 10.1046/j.1365-2044.1999.01191.x
UR  - https://pubmed.ncbi.nlm.nih.gov/10541716/
ID  - 10541716
ER  -