Digital Twins in Healthcare: Conceptualization and Use Case Definition. - Mariana Dias; Federico Guede-Fernández; Ana Januário; Anabela G. Silva; Carolina Capitão; Hugo Gamboa; Joel Ribeiro; Julian Perelman; Luís Silva; Mariana Carvalho; Marta Moreira Marques; Rui Malha; et al. (BIOSTEC (4), 2026)