International variation in absence from work attributed to musculoskeletal illness: findings from the CUPID study
David Coggon, Georgia Ntani, Sergio Vargas-Prada, José Miguel Martinez, Consol Serra, Fernando G Benavides, Keith T Palmer, and other members of the CUPID Collaboration
Occupational and Environmental Medicine Aug 2013, 70 (8) 575-584; DOI: 10.1136/oemed-2012-101316
