RT Journal Article SR Electronic T1 Infective endocarditis prophylaxis before dental procedures: New guidelines spark controversy JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 89 OP 92 VO 75 IS 2 A1 Alice Kim A1 Thomas Keys YR 2008 UL http://www.ccjm.org/content/75/2/89.abstract AB