TY  - RPRT
TI  - Active treatment programs for patients with chronic low back pain: a prospective, randomized, observer-blinded study.
AU  - A F Bendix
AU  - T Bendix
AU  - S Ostenfeld
AU  - E Bush
AU  - Andersen
PY  - 1995
DO  - 10.1007/bf00298239
UR  - https://pubmed.ncbi.nlm.nih.gov/7552649/
ID  - 7552649
ER  -