TY - GEN AU - Carragee,Eugene J TI - Clinical practice. Persistent low back pain SN - 1533-4406 PY - 2005///0510 KW - Chronic Disease KW - Humans KW - Low Back Pain KW - etiology KW - Male KW - Middle Aged KW - Practice Guidelines as Topic KW - Spinal Diseases KW - complications N1 - Publication Type: Journal Article; Review UR - https://doi.org/10.1056/NEJMcp042054 ER -