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Mihali, K.; Markus, B.; Schieffer, B.; Bauer, M.; Kreutz, J. Thinking Outside the Box: Case Report of a Rare Quadricuspid Aortic Valve As an Underrecognized Cause of Heart Failure and Atrial Fibrillation. J Med Cases 2025. https://doi.org/10.14740/jmc5153.