DFU_VIRNet: A novel Visible-InfraRed CNN to improve diabetic foot ulcer classification and early detection of ulcer risk zones. - Juan Reyes-Luévano; J. Ascención Guerrero-Viramontes; J. Rubén Romo-Andrade; M. Funes-Gallanzi (Biomed. Signal Process. Control., 2023)