M. McClellan. The New England journal of medicine, 356 (17):
1700-1702(April 2007)PUBM: Print-Electronic; DEP: 20070413; JID: 0255562; 2007/04/13 aheadofprint; ppublish.
M. Dworkin, L. Park, and S. Borchardt. Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America, 44 (6):
810--6(March 2007)PMID: 17304452.