Show 10 5 10 15 20 50 100 250 Sort by year (new to old) Actions Save this search Download search results Subscribe to news feed Your filters: cql: author="Williams, Craig A" or (type any "bookEditor issueEditor" and editor="Williams, Craig A") Add to list Journal Article A1 Seasonal variation in physical activity and sedentary time in different European regions: the HELENA study Luis Gracia-Marco, Francisco B Ortega, Jonatan R Ruiz, Craig A Williams, Maria Hagströmer, Yannis Manios, Anthony Kafatos, Laurent Béghin, Angela Polito, Stefaan De Henauw (UGent) , et al. (2013) JOURNAL OF SPORTS SCIENCES. 31(16). p.1831-1840