Interim implementation and effectiveness results from the IMplementation of Physical Activity for Children and adolescents on Treatment (IMPACT) intervention and trial. - McLaughlin E; Culos-Reed SN; Chamorro-Viña C; Wilson B; Fisher S; Guilcher GMT; Penney B; Penney M; Wich L; Wich J; Cuthbert C; Wurz A (Frontiers in pediatrics, 2026)