Ahmed K, Ashrafian H, Hanna GB, Darzi A, Athanasiou T. Assessment of specialists in cardiovascular practice. Nature Reviews. Cardiology. October 2009, 6 (10): 659–67. PMID 19724254. S2CID 21452983. doi:10.1038/nrcardio.2009.155.
Ahmed K, Ashrafian H, Hanna GB, Darzi A, Athanasiou T. Assessment of specialists in cardiovascular practice. Nature Reviews. Cardiology. October 2009, 6 (10): 659–67. PMID 19724254. S2CID 21452983. doi:10.1038/nrcardio.2009.155.
Ahmed K, Ashrafian H, Hanna GB, Darzi A, Athanasiou T. Assessment of specialists in cardiovascular practice. Nature Reviews. Cardiology. October 2009, 6 (10): 659–67. PMID 19724254. S2CID 21452983. doi:10.1038/nrcardio.2009.155.