The association between shift work and sick leave: a systematic review
Suzanne L Merkus, Alwin van Drongelen, Kari Anne Holte, Merete Labriola, Thomas Lund, Willem van Mechelen, Allard J van der Beek
Occupational and Environmental Medicine Oct 2012, 69 (10) 701-712; DOI: 10.1136/oemed-2011-100488