Emily Q Ahonen1,2, Fernando G Benavides3. 1. Department of Environmental Health Science, Richard M. Fairbanks School of Public Health, Indiana University, Bloomington, Indiana, USA. 2. Department of Social and Behavioral Sciences, Richard M. Fairbanks School of Public Health, Indiana University, Bloomington, Indiana, USA. 3. Department of Experimental and Health Sciences, Centre for Research in Occupational Health (CiSAL), Pompeu Fabra University, CIBER of Epidemiology and Public Health, Barcelona, Spain.