1. Horstkotte D, Schulte HD, Bircks W. Factors influencing prognosis and indication for surgical intervention in acute native-valve endocarditis. Infective Endocarditis by D Horstkotte and E Bodnar.
2. Kurland S, Enghoff E, Landelius J, Nystrrom SO, Hambraeus A, Friman G. A 10-year retrospective study of infective endocarditis at a university hospital with special regard to the timing of surgical evaluation in S. viridans endocarditis. Scan J Infect Dis 1999;31:87–91
3. Truninger K, Jost CH, Seifert B, Vogt PR, Follath F, Schaffner A, Jenni R. Long-term follow up of prosthetic valve endocarditis: what characteristics identify patients who were treated successfully with antibiotics alone? Heart 1999;82:714–20
4. Iemura J, Wakaki N, Saga T, Oka H, Oku H, Shirotani H. Timing of surgical treatment for native valve endocarditis. Jpn Circ J 1997;61:467–70
5. Aranki SF, Santini F, Adams DH, Rizzo RJ, Couper GS, Kinchla NM, Gildea JS, Collins JJ, Cohn LH. Aortic valve endocarditis. Determinants of early and late morbidity. Circulation 1994;90:II175–82