1/ JOHANSSON EVA 553.811 Exercise-based physiotherapy management of patients with persistent, non-specific low back pain : a cognitive-behavioural approach to assessment and treatment in a primary care setting / by Eva Johansson [Uppsala University]. - Uppsala : Acta Universitatis Upsaliensis, 1999. - 55 s. : wykr. ; 25 cm. - (Comprehensive Summaries