Physical work exposure, chronic musculoskeletal pain and risk of insomnia: longitudinal data from the HUNT study, Norway
Eivind Schjelderup Skarpsno, Tom Ivar Lund Nilsen, Trond Sand, Knut Hagen, Paul Jarle Mork
Occupational and Environmental Medicine Jun 2018, 75 (6) 421-426; DOI: 10.1136/oemed-2018-105050