2Lund GK,Schroder S,Koschyk DH,et al.Echocardiographic diagnosis of papillary fibroelastoma of the mitral and tricuspid valve apparatus[].Clinical Cardiology.1997
3Konishi H,Fukuda M,Kato M,et al.Organized thrombus of the tricuspid valve mimicking valvular tumor[].The Annals of Thoracic Surgery.2001