Infective endocarditis with left to right intracardiac fistula due to Streptococcus anginosus: a rare complication caused by an even rarer bacterium - Forster, Robert; Campos, Fernando Peixoto Ferraz de; Lovisolo, Silvana Maria; Aiello, Vera Demarchi; Martines, João Augusto dos Santos (Autopsy and Case Reports, 2013)