title: Physical therapy, chiropractic manipulation, or an educational booklet for back pain.
authors.forename: C B
authors.initials: CB
authors.lastname: Lewis
authors.forename: J
authors.initials: J
authors.lastname: Laukaitis
mesh_terms: D006801:Humans; D017116:Low Back Pain / Q000145:classification / Q000628:therapy*; D010353:Patient Education as Topic; D026741:Physical Therapy Modalities / Q000379:methods*; D012720:Severity of Illness Index