- Correspondence to Tobias Weinmann, Occupational and Environmental Epidemiology & NetTeaching Unit, Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, University Hospital of Munich (LMU), 80336 Munich, Germany;
- Received September 12, 2016
- Revised March 28, 2017
- Accepted April 13, 2017
- First published May 8, 2017.
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