%0 Journal Article %T Return to self-reported physical activity level after an event of acute low back pain %A Daniel Pozzobon %A Daniel Steffens %A Fiona M. Blyth %A Leandro A. Calazans Nogueira %A Manuela L. Ferreira %A Paula R. Beckenkamp %A Paulo H. Ferreira %J Archive of "PLoS ONE". %D 2019 %R 10.1371/journal.pone.0219556 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6619819/