Physical demand at work and sick leave due to low back pain: a cross-sectional study
Jonathan Petersen, Lilli Kirkeskov, Bjarke Brandt Hansen, Luise Moelenberg Begtrup, Esben Meulengracht Flachs, Mikael Boesen, Philip Hansen, Henning Bliddal, Ann Isabel Kryger
BMJ Open May 2019, 9 (5) e026917; DOI: 10.1136/bmjopen-2018-026917