Lee, J.C.Y., Chiang, J.B. and Chow, B.C.K. 2020. Type B Interrupted Aortic Arch with a Patent Ductus Arteriosus in an Adult Presenting with Secondary Polycythaemia. European Journal of Case Reports in Internal Medicine. 7, 4 (Feb. 2020). DOI:https://doi.org/10.12890/2020_001511.