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APA Citation
Cerillo, A., Petrini, F., Bugetti, M., Iannone, L., De Cillis, P., Paduvakis, J., Marchionni, N., & Stefano, P. (n.d.). are severe mitral annular calcification still a contraindication to open surgery?. European heart journal, 43, . http://access.bl.uk/ark:/81055/vdc_100168329204.0x00003c