title: RETRACTION: Thrombus arising from the ascending aorta', Manabu Shiraishi, Kei Aizawa, Shin-ichi Ohki and Yoshio Misawa.
abstract: The paper entitled 'Thrombus arising from the ascending aorta' by Manabu Shiraishi, Kei Aizawa, Shin-ichi Ohki and Yoshio Misawa published in Asian Cardiovasc Thorac Ann 2012; 20: 351, doi: 10.1177/0218492311419767 has been retracted. This is due to duplicate publication. An earlier version of the article was found to have been previously published in Eur J Cardiothorac Surg (2011) 40(3): e133, doi: 10.1016/j.ejcts.2011.04.032.