Does income matter for troublesome neck pain? A population-based study on risk and prognosis
Lina Palmlöf, Eva Skillgate, Lars Alfredsson, Eva Vingård, Cecilia Magnusson, Michael Lundberg, Lena W Holm
J Epidemiol Community Health Nov 2012, 66 (11) 1063-1070; DOI: 10.1136/jech-2011-200783