Dose–Response Effects of a 4‐Month FIT FIRST 10 School‐Based Multisport Programme on Physical Fitness and Psychosocial Well‐Being in Children Aged 7–11: A Three‐Arm Cluster‐Randomized Controlled Trial. - Eckert, Caroline; Thøgersen‐Ntoumani, Cecilie; Larsen, Malte Nejst; Koch, Sofie; Christiansen, Lars Breum; Meiner, Christina Birch; Cimenti, Chiara; Tarantino, Giampiero; Ntoumanis, Nikos; Krustrup, Peter (Scandinavian Journal of Medicine & Science in Sports (John Wiley & Sons, Inc.), 2026)