APA

Daniel G. K., Chawla M. K., Sawada S. G., Gradus-Pizlo I., Feigenbaum H. & Segar D. S. (20011204). Echocardiographic imaging of technically difficult patients in the intensive care unit: use of optison in combination with fundamental and harmonic imaging. : Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography.

Chicago

Daniel G K, Chawla M K, Sawada S G, Gradus-Pizlo I, Feigenbaum H and Segar D S. 20011204. Echocardiographic imaging of technically difficult patients in the intensive care unit: use of optison in combination with fundamental and harmonic imaging. : Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography.

Harvard

Daniel G. K., Chawla M. K., Sawada S. G., Gradus-Pizlo I., Feigenbaum H. and Segar D. S. (20011204). Echocardiographic imaging of technically difficult patients in the intensive care unit: use of optison in combination with fundamental and harmonic imaging. : Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography.

MLA

Daniel G K, Chawla M K, Sawada S G, Gradus-Pizlo I, Feigenbaum H and Segar D S. Echocardiographic imaging of technically difficult patients in the intensive care unit: use of optison in combination with fundamental and harmonic imaging. : Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography. 20011204.