Hair Cortisol Concentrations in the Prediction of Early Substance Use Engagement in Youth. - Georgiades, Anastasia; Godwin, Jennifer; Andrade, Fernanda C.; Copeland, William E.; Davisson, Erin K.; Kuhn, Cynthia M.; Burnell, Kaitlyn; Hoyle, Rick H. (Substance Use & Misuse, 2025)