- Correspondence to Dr Sergio Vargas-Prada, Center for Research in Occupational Health (CiSAL), Universitat Pompeu Fabra, Calle Dr Aiguader 88, 1ra planta, despacho 171.03, edificio PRBB, Barcelona 08003, Spain; Commentary on the paper by Mustard et al., Occup Environ Med, 2014.
- Received November 4, 2014
- Accepted November 13, 2014
- First published November 27, 2014.
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