Impact of age-related changes in buccal epithelial cells on pediatric epigenetic biomarker research. - Merrill SM; Konwar C; Fatima F; Dever K; MacIsaac JL; Letourneau N; Giesbrecht GF; Dewey D; England-Mason G; Lewis CR; Wang D; Teh AL; et al. (Nature communications, 2025)