Media type: E-Article Title: Letter to the Editor on Bil et al. 2021 “Risk Assessment of Per‐ and Polyfluoroalkyl Substance Mixtures: A Relative Potency Factor Approach” Contributor: Rietjens, Ivonne M. C. M.; Schriks, Merijn; Houtman, Corine J.; Dingemans, Milou M. L.; van Wezel, Annemarie P. imprint: Wiley, 2022 Published in: Environmental Toxicology and Chemistry Language: English DOI: 10.1002/etc.5232 ISSN: 0730-7268; 1552-8618 Keywords: Health, Toxicology and Mutagenesis ; Environmental Chemistry Origination: Footnote: