etiologic factors in culture-negative endocarditis -- better referred to as `` '' apparent '' '' culture-negative endocarditis -- include ( 1 ) previous antibiotic therapy , ( 2 ) fastidious , slow-growing bacteria , ( 3 ) nonbacterial organisms , ( 4 ) right-sided endocarditis , and ( 5 ) noninfective endocarditis .
C0014118
d endocardit
C0221390
) noninfective endocardit