Ostelo, Raymond W J G Behavioral graded activity following first-time lumbar disc surgery: 1-year results of a randomized clinical trial. [electronic resource] - Spine Aug 2003 - 1757-65 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial ISSN: 1528-1159 Standard No.: 10.1097/01.brs.0000083317.62258.e6 doi Subjects--Topical Terms: AdultBehavior ControlConditioning, OperantExercise Therapy--methodsFemaleFollow-Up StudiesHumansIntervertebral Disc--surgeryLumbar Vertebrae--surgeryMale