The Adductor Strengthening Programme prevents groin problems among male football players: a cluster-randomised controlled trial.
Joar HarøyBenjamin ClarsenEspen Guldahl WigerMari Glomnes ØyenAndreas SernerKristian ThorborgPer HölmichThor Einar AndersenRoald BahrPublished in: British journal of sports medicine (2018)
ISRCTN98514933.