1. Letter enclosing the history and dissection of a case in which a foreign body was found within the heart;Wood;Edinburgh Med Surg J,1814
2. Ball thrombi of the heart;Abramson;Ann Clin Med,1924
3. Occlusive avricular thrombi;Read;Circulation,1955
4. “Hole-in-one” sudden death: Mitral stenosis and left atrial ball thrombus;Lie;Am Heart J,1976
5. Free ball thrombus of the left atrium;Söogaard;Eur J Cardiol,1981