Correction: Antibiotic prophylaxis dosage error

In the February 2008 issue, the article “Infective endocarditis prophylaxis before dental procedures: new guidelines spark controversy” by Dr. Alice Kim and Dr. Thomas Keys (pages 89–92) contained a typographical error. In Table 2, “Antibiotic prophylactic regimens” on page 91, the dose of azithromycin or clarithromycin in adults was incorrect. It should be 500 mg.