Perfluorinated compounds: An overview -- Analysis of PFASs in biological tissues and fluids -- PFASs in the general population -- PFAS Biomonitoring in Higher Exposed Populations -- Perfluorinated Alkyl Acids in Wildlife -- Metabolism and Pharmacokinetics -- Metabolic EffectsPFAS -- Developmental Toxicity -- Neurotoxicity -- Immunotoxicity of Perfluoroalkylated Compounds -- Effects of PFOA on Endocrine-related Systems -- Carcinogenicity of Perfluoroalkyl Compounds -- Epidemiological Findings -- Dosimetric Anchoring of Toxicological Studies -- Human Health Risk Assessment of Perfluoroalkyl Acids -- Systematic Review, An Illustration of Increased Transparency in a Framework for Evaluating Immunotoxicity Associated with PFOA and PFOS Exposure -- Toxicology data for alternative "short-chain" fluorinated substances -- Conclusions and recommendations.  .