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Name: Carine Sakr, MD MPH 1 Robin Leonard, PhD 2 Mark Cullen, MD 1 R 6_ 36-^7 Program Affiliation: '"Yale Occupational and Environmental Medicine Program 2"Epidemiology Program at DuPont Haskell Laboratory for Health and Environmental Sciences Address: 135 College Street, 3rd floor New Haven, CT 06510 Phone: 856-816-1539 Fax: 203-785-7391 Email: carine.sakr @vale.edu TITLE Twenty-five year longitudinal study of serum total cholesterol related to a serum biomarker of exposure (serum perfluorooctanoate or PFOA) in a polymer production plant.

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Subject: PFAS restriction proposal and the use of fluoropolymers in critical water, gas and liquid fuels infrastructure Introduction and aims This comment is submitted in the name of figawa e.V.1, the German association of companies for gas and water technologies supported by DGMT e.V.2 (German society for membrane technology) and Aqua Europa AISBL3.