An intervention to optimise coach-created motivational climates and reduce athlete willingness to dope (CoachMADE): a three-country cluster randomised controlled trial
Nikos Ntoumanis, Eleanor Quested, Laurie Patterson, Stella Kaffe, Susan H Backhouse, George Pavlidis, Lisa Whitaker, Vassilis Barkoukis, Brendan J Smith, Helen R Staff, Daniel F Gucciardi
British Journal of Sports Medicine Feb 2021, 55 (4) 213-219; DOI: 10.1136/bjsports-2019-101963