TY  - RPRT
TI  - When back pain becomes disabling: a regional analysis.
AU  - Ernest Volinn
AU  - Daniel Lai
AU  - Steven McKinney
AU  - John D Loeser
PY  - 1988
DO  - 10.1016/0304-3959(88)90200-x
UR  - https://pubmed.ncbi.nlm.nih.gov/2967946/
ID  - 2967946
ER  -