- Correspondence to Dr Pamela Merino-Salazar, Center for Research in Occupational Health, Edificio PRBB (Campus del Mar), Doctor Aiguader, 88, Barcelona 08003, Spain;
- Received June 12, 2016
- Revised December 8, 2016
- Accepted December 19, 2016
- First published January 16, 2017.
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