From the University of Maryland.
Received for publication February 9, 2011; accepted February 15, 2011.
Disclosure: The author has no financial interest to declare in relation to the content of this Discussion or of the associated article.
Sheri Slezak, M.D., University of Maryland, 22 South Greene Street, S8D16, Baltimore, Md. 21212, firstname.lastname@example.org