Weekly physical activity trajectories in short- and long-term survivors of childhood cancer: the PACCS and SURfit studies. - Bratteteig M; Grydeland M; Anderssen SA; Ruud E; Torsvik IK; Thorsen L; Fridh MK; Järvelä L; Götte M; Hansen BH; Zürcher SJ; Kriemler S; et al. (Journal of cancer survivorship : research and practice, 2026)