Evaluating gradient-based explanation methods for neural network ECG analysis using heatmaps. - Andrea M. Storås; Steffen Mæland; Jonas Isaksen; Steven Alexander Hicks; Vajira Thambawita; Claus Graff; Hugo Lewi Hammer; Pål Halvorsen; Michael Alexander Riegler; Jørgen K. Kanters (J. Am. Medical Informatics Assoc., 2025)