On pages1039 and 1043 in the February 1, 2008, issue, the eighth author's last name, affiliation, and contributing author initials are incorrect. The correct name is Carlo Gambacorti-Passerini; the affiliation is S. Gerardo Hospital, University of Milano Bicocca, Monza, Italy; and the correct author initials in the Contribution paragraph of “Authorship” are C.G.-P. The errors were corrected in the online version, which now differs from the print version.

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