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APA Citation
Alushi, B., Ensminger, S., Balaban, U., Frerker, C., Falk, V., & Lauten, A. (n.d.). low-gradient aortic stenosis in patients with concomitant mitral regurgitation - a subgroup analysis from the German aortic valve registry (GARY). European heart journal, 22, . http://access.bl.uk/ark:/81055/vdc_100121926990.0x000016