Challenges in Mexico in the management of out-of-hospital cardiac arrest. - Álvarez de la Cadena-Sillas, Jorge; Asensio-Lafuente, Enrique; Fraga-Sastrias, Juan Manuel; Rodríguez-Reyes, Humberto; Urzúa-González, Agustín Ramiro; Díaz-Soto, Edgar (Cardiovascular & Metabolic Science, 2026)