affiliation not provided to SSRN, George Washington University, affiliation not provided to SSRN, Simon Fraser University (SFU), University of Washington, Government of the United States of America - Division of Laboratory Sciences, Government of the United States of America - National Center for Environmental Health, Government of the United States of America - National Center for Environmental Health, Centers for Disease Control and Prevention, Johns Hopkins University, Cincinnati Children's Hospital Medical Center, University of Pennsylvania, University of Cincinnati, College of Medicine, University of Cincinnati, College of Medicine, affiliation not provided to SSRN, Brown University and affiliation not provided to SSRN