TY  - GEN
AU  - Bruusgaard,D
TI  - [Musculoskeletal problems and physical activity]
SN  - 0029-2001
PY  - 1998///0305
KW  - Exercise Therapy
KW  - Humans
KW  - Low Back Pain
KW  - economics
KW  - Musculoskeletal Diseases
KW  - Norway
KW  - Sick Leave
N1  - Publication Type: Comment; Letter
ER  -