TY  - RPRT
TI  - Maine lumbar spine study.
AU  - R Keller
AU  - S J Atlas
AU  - R A Deyo
AU  - D E Singer
PY  - 1997
DO  - 10.1097/00007632-199702150-00023
UR  - https://pubmed.ncbi.nlm.nih.gov/9055377/
ID  - 9055377
ER  -