404. That’s an error.

The requested URL /translate_c?act=url&depth=1&hl=it&ie=UTF8&prev=_t&rurl=translate.google.it&sl=auto&tl=it&u=http://www.ncbi.nlm.nih.gov/pubmed/1839644&usg=ALkJrhi_2r6c0nDOSy3yWRC1E6xnv_pDeA was not found on this server. That’s all we know.