404. That’s an error.

The requested URL /translate_c?depth=1&langpair=auto%7Ces&rurl=translate.google.com&u=http://www.ncbi.nlm.nih.gov/pubmed/12442909&usg=ALkJrhiZ79eeeGszy1IhWTwojVfyJxWnmg was not found on this server. That’s all we know.