- Correspondence to Annett Dalbøge, Danish Ramazzini Centre, Department of Occupational Medicine, Aarhus University Hospital, Nørrebrogade 44, Building 2C, 8000 Aarhus N, Denmark;
- Received February 11, 2014
- Revised July 2, 2014
- Accepted July 16, 2014
- First published August 1, 2014.
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