Longitudinal studies < Methodology, speciality

Mortality and cancer incidence in a pooled cohort of US firefighters from San Francisco, Chicago and Philadelphia (1950–2009)
Robert D Daniels, Travis L Kubale, James H Yiin, Matthew M Dahm, Thomas R Hales, Dalsu Baris, Shelia H Zahm, James J Beaumont, Kathleen M Waters, Lynne E Pinkerton

Occupational and Environmental Medicine Jun 2014, 71 (6) 388-397; DOI: 10.1136/oemed-2013-101662
Does transfer of work from a public sector organisation to a commercial enterprise without staff reductions increase risk of long-term sickness absence among the staff? A cohort study of laboratory and radiology employees
Lauri Kokkinen, Marianna Virtanen, Jaana Pentti, Jussi Vahtera, Mika Kivimäki

Occupational and Environmental Medicine Aug 2013, 70 (8) 585-587; DOI: 10.1136/oemed-2012-101174

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