RT Journal Article SR Electronic T1 Trajectories of multisite musculoskeletal pain and implications for prevention JF Occupational and Environmental Medicine JO Occup Environ Med FD BMJ Publishing Group Ltd SP 465 OP 466 DO 10.1136/oemed-2016-104196 VO 74 IS 7 A1 David Coggon A1 Georgia Ntani YR 2017 UL http://oem.bmj.com/content/74/7/465.abstract AB