Dyspnea and a Fistula: A Case Report of an Unusual Cardiac Connection. - Taimur, Muhammad; Harmouch, Khaled M.; Shaheriyar, Mohammed M.; Bahar, Yasemin; Hettiarachchi, Malitha; Alraies, M. Chadi; Hirosawa, Takanobu (Case Reports in Medicine, 2026)