404. That’s an error.

The requested URL /translate_c?depth=2&hl=iw&rurl=translate.google.com&sl=en&tl=iw&u=http://www.ncbi.nlm.nih.gov/pubmed/16340654&usg=ALkJrhjTSYoCpNHhm2QCPsBLbdF-C_zVtw was not found on this server. That’s all we know.