@misc{indiciae6baa3ab19349, title = {[Contrast echocardiography. Basic principles and clinical applications].}, author = {P R Hansen and U Abildgaard and A M Galløe and T N Jacobsen and E Kassis and K Lindvig}, year = {2000}, url = {https://pubmed.ncbi.nlm.nih.gov/11094566/}, note = {Source identifier: 11094566} }