PRACE DOKTORSKIE - SZWECJA 549,890 BLOMBERG STEFAN A pragmatic approach to law-back pain includnig manual therapy and steroid injections: a multicentre study in primary health care : [doctoral dissertations] / by Stefan Blomberg -, [Uppsala University]. -Uppsala : Academiae Ubsaliensis, 1993. - 146 s. : il., wykr. ; 25 cm (Acta Universitatis Upsaliensis : Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine, ISSN 0282-7476 ; 394) ISSN 0282-7476 j