Bakulski K, Fisher J, Dou J, Gard A, Schneper L, Notterman D, Ware E, Mitchell C. Prenatal Particulate Matter Exposure Is Associated with Saliva DNA Methylation at Age 15: Applying Cumulative DNA Methylation Scores as an Exposure Biomarker. Toxics. 2021;9(10). PMCID: PMC8538839