Effects of presurgical HIIT in hormone receptor‐positive, HER 2‐negative breast cancer cases: Two case reports from the GEICAM EFiK study. - Pérez‐Bilbao, Txomin; López‐Tarruella, Sara; Alonso‐Dueñas, María; San Juan, Alejandro F.; Ferreres‐García, Karla; Martín, Miguel; Peinado, Ana B.; Rojo, Federico (Physiological Reports, 2025)