Article Information
vol. 4 no. 2
Published By
Online ISSN
History
- Received February 9, 2018
- Accepted April 24, 2018
- Published online June 26, 2018.
Copyright & Usage
Copyright ©ERS 2018 This article is open access and distributed under the terms of the Creative Commons Attribution Non-Commercial Licence 4.0.
Author Information
- 1National Institute of Occupational Health, Dept of National Surveillance System for Work Environment and Occupational Health, Oslo, Norway
- 2National Institute of Occupational Health, Dept of National Surveillance System for Work Environment and Occupational Health, Oslo, Norway
- 3National Institute of Occupational Health, Dept of Occupational Medicine and Epidemiology, Oslo, Norway
- Håkon A. Johannessen, National Institute of Occupational Health, Dept of National Surveillance System for Work Environment and Occupational Health, P.O. Box 8149 Dep, NO-0033 Oslo, Norway. E-mail: hajo{at}stami.no