[Surgical treatment of syphilitic coronary ostial obstruction--report of successful correction in 2 cases by aortocoronary bypass].
D001022:Aortic Valve Insufficiency / Q000601:surgery; D001026:Coronary Artery Bypass; D003327:Coronary Disease / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013589:Syphilis, Cardiovascular / Q000601:surgery*