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APA Citation
Kronik, G., Stöllberger, C., Schuh, M., Abzieher, F., Slany, J., & Schneider, B. (1995). interobserver variability in the detection of spontaneous echo contrast, left atrial thrombi, and left atrial appendage thrombi by transoesophageal echocardiography.. Heart, 74(1), 80–83. http://access.bl.uk/ark:/81055/vdc_100144732503.0x000042