Choline and betaine concentrations in plasma predict dietary choline intake in healthy humans: a double-blind randomized control feeding study. - Trujillo-Gonzalez I; Horita DA; Stegall J; Coble R; Paules EM; Lulla AA; Baah E; Bottiglieri T; Sha W; Kohlmeier M; Friday WB; Zeisel SH (MedRxiv : the preprint server for health sciences, 2025)