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Journal of the American Society of Echocardiography > 2011 > 24 > 9 > 984-991
European Journal of Cardio-Thoracic Surgery > 2006 > 30 > 5 > 722-727
Journal of the American Society of Echocardiography > 2011 > 24 > 9 > 984-991
European Journal of Cardio-Thoracic Surgery > 2006 > 30 > 5 > 722-727