School-related physical activity interventions and mental health among children: a systematic review and meta-analysis.
Susanne AndermoMats HallgrenThi-Thuy-Dung NguyenSofie JonssonSolveig PetersenMarita FribergAnja RomqvistBrendon StubbsLiselotte Schäfer ElinderPublished in: Sports medicine - open (2020)
PROSPERO, CRD42018086757.