著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Justin J Lang and Mark S Tremblay and Luc Léger and Tim Olds and Grant R Tomkinson,International variability in 20 m shuttle run performance in children and youth: who are the fittest from a 50-country comparison? A systematic literature review with pooling of aggregate results,British Journal of Sports Medicine,0306-3674,BMJ,2016-09-20,52,4,276-276,https://cir.nii.ac.jp/crid/1361699996002992640,https://doi.org/10.1136/bjsports-2016-096224