Modifiable risk factors of vaccine hesitancy: insights from a mixed methods multiple population study combining machine learning and thematic analysis during the COVID-19 pandemic - Ebrahimi, OV; Sandbakken, EM; Moss, SM; Johnson, SU; Hoffart, A; Bauermeister, S; Solbakken, OA; Westlye, LT; Leonardsen, EH (BMC Medicine, 2025)