Maria Bonou, Eva D Papadimitraki, Sophia Vaina, Glafkos Kelepeshis, Kostas Tsakalis, Nikolaos Alexopoulos, John Barbetseas

J Cardiovasc Ultrasound.2015;23(4):257-261.   Published online 2015 December 30     DOI: http://dx.doi.org/10.4250/jcu.2015.23.4.257