![Efficiency and Costs of Medical Exercise Therapy, Conventional Physiotherapy, and Self-Exercise in Patients With Chronic Low Back Pain]()
Efficiency and Costs of Medical Exercise Therapy, Conventional Physiotherapy, and Self-Exercise in Patients With Chronic Low Back PainTorstensen, Tom Arild; Ljunggren, Anne Elisabeth; Meen, Helge Dyre; Odland, Ellen; Mowinckel, Petter; af Geijerstam, Svante · Spine · 1998