Medical Imaging AI Competitions Lack Fairness. - Annika Reinke; Evangelia Christodoulou; Sthuthi Sadananda; A. Emre Kavur; Khrystyna Faryna; Daan Schouten; Bennett A. Landman; Carole H. Sudre; Olivier Colliot; Nicholas Heller; Sophie Loizillon; Martin Maska; et al. (CoRR, 2025)