Is the Swallow Tail Sign a Useful Imaging Biomarker in Clinical Neurology? A Systematic Review. - Tseriotis, Vasilis‐Spyridon; Eleftheriadou, Kyriaki; Mavridis, Theodoros; Konstantis, Georgios; Falkenburger, Bjoern; Arnaoutoglou, Marianthi (Movement Disorders Clinical Practice, 2025)