404. That’s an error.

The requested URL /translate_c?depth=1&hl=it&prev=search&rurl=translate.google.it&sl=en&u=http://www.nejm.org/doi/full/10.1056/nejmsa066082&usg=ALkJrhj98F6ilzfYNXeFbsju47rRoPz78w was not found on this server. That’s all we know.