Improvement of Retinal Microcirculation after Pulmonary Vein Isolation in Patients with Atrial Fibrillation—An Optical Coherence Tomography Angiography Study oleh Philipp S. Lange, Natasa Mihailovic, Eliane Esser, Gerrit Frommeyer, Alicia J. Fischer, Niklas Bode, Dennis Höwel, Friederike Rosenberger, Nicole Eter, Lars Eckardt, Larissa Lahme, Maged Alnawaiseh