AUTHOR=Goodman Julie E. , Rhomberg Lorenz R. , Cohen Samuel M. , Mundt Kenneth A. , Case Bruce , Burstyn Igor , Becich Michael J. , Gibbs Graham TITLE=Challenges in defining thresholds for health effects: some considerations for asbestos and silica JOURNAL=Frontiers in Epidemiology VOLUME=5 YEAR=2025 URL=https://www.frontiersin.org/journals/epidemiology/articles/10.3389/fepid.2025.1557023 DOI=10.3389/fepid.2025.1557023 ISSN=2674-1199