B. Özkaynak, N. Kayalar, B. Mert, S. Sönmez, and V. Erentuğ, “Left Atrial Leiomyosarcoma Extending into the Posterior Mediastinum and Mimicking a Left Atrial Myxoma”, HSF, vol. 16, no. 6, pp. E309-E312, Dec. 2013.