Erratum to: Scaling-up an efficacious school-based physical activity intervention: Study protocol for the ‘Internet-based Professional Learning to help teachers support Activity in Youth’ (iPLAY) cluster randomized controlled trial and scale-up implementation evaluation

Author details Institute for Positive Psychology and Education, Australian Catholic University, Edward Clancy Building 167-169 Albert St, Strathfield, NSW 2135, Australia. Priority Research Centre for Physical Activity and Nutrition, School of Education, University of Newcastle, Callaghan, NSW 2308, Australia. Institute for Positive Psychology and Education and School of Exercise Science, Australian Catholic University, Edward Clancy Building 167-169 Albert St, Strathfield, NSW 2135, Australia. School of Exercise Science, Australian Catholic University, Edward Clancy Building 167-169 Albert St, Strathfield, NSW 2135, Australia. Physical Activity Research Group, School of Human Health and Social Sciences, Central Queensland University, Building 18, Yaamba Road, Rockhampton, QLD 4702, Australia. Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia. Deakin Health Economics, Centre for Population Health Research, Faculty of Health, Deakin University, Geelong, VIC, Australia. Center for Hip Health and Mobility, University of British Columbia, 7/F, 2635 Laurel Street, Vancouver, BC V5Z 1 M9, Canada. School of Science and Health, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia. School of Education, Australian Catholic University, 250 Victoria Parade East, Melbourne, VIC 3002, Australia. Faculty of