Adapting a complex health intervention guided by the core functions and forms model: a methodology and case example of participatory adaptation - Kirsten E. Austad; Nhi Nguyen; Elizabeth Jadovich; Bridget Poznanski; Max Laguerre; Alicia Fernandez; Mari-Lynn Drainoni; Brian Jack; Suzanne Mitchell; Ramzi G. Salloum; Graham Moore (Frontiers in Health Services, 2026)