Ho, SY (January 2009). "Structure and anatomy of the aortic root.". European journal of echocardiography : the journal of the Working Group on Echocardiography of the European Society of Cardiology10 (1): i3-10. doi:10.1093/ejechocard/jen243. பப்மெட்:19131496.
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ncbi.nlm.nih.gov
Ho, SY (January 2009). "Structure and anatomy of the aortic root.". European journal of echocardiography : the journal of the Working Group on Echocardiography of the European Society of Cardiology10 (1): i3-10. doi:10.1093/ejechocard/jen243. பப்மெட்:19131496.