. 2016 Jun 6;58(4):347–353. doi: 10.1539/joh.16-0002-OA
Journal of Occupational Health is an Open Access article distributed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. To view the details of this license, please visit (https://creativecommons.org/licenses/by-nc-sa/4.0/).
Fig. 1.
Participant flow diagram