R. M. Campaner, M. E. Tau, F. Ortelli, M. L. De Perna, and T. Fusi-Schmidhauser, “When the Heart Triggers the Esophagus: Esophageal Spasm after Electrical Cardioversion”, EJCRIM, vol. 6, no. 12, Dec. 2019, doi: 10.12890/2019_001369.