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Journal of the American Society of Echocardiography > 2015 > 28 > 12 > 1434-1440
Scandinavian Journal of Medicine & Science in Sports > 25 > 3 > 372 - 381
Cardiovascular Ultrasound > 2015 > 13 > 1 > 1-8
Journal of the American Society of Echocardiography > 2009 > 22 > 7 > 803-809