TY - JOUR T1 - Flavored combustible tobacco product initiation in two longitudinal youth cohorts in the US Population Assessment of Tobacco and Health Study: 2013-2016 and 2016-2019 AU - Lea Watkins, Shannon AU - Page, Simon AU - Kim, Yoonsang AU - Kostygina, Ganna AU - Emery, Sherry PY - 2025 DO - 10.1016/j.addbeh.2024.108176 JO - Addictive Behaviors VL - 160 SN - 0306-4603 ER -