Björck-van Dijken C, Fjellman-Wiklund A, Hildingsson C. Low back pain, lifestyle factors and physical activity: a population based-study. J Rehabil Med. 2008; 40(10): 864-869
Croft PR, Macfarlane GJ, Papageorgiou AC, Thomas E, Silman AJ. Outcome of low back pain in general practice: a prospective study. BMJ 1998; 316: 1356-1359
Hübscher M, Zech A, Pfeifer K, Vogt L, Banzer W. - Referat Nr. 26 (Poster), Sitzung PO-1 (24.09.2009, 10:50 Uhr - Deutsche Zeitschrift für Sportmedizin Jahrgang 60, Nr. 7-8 (2009): 175