_:vb50948714 "url:http://www.nlm.nih.gov/medlineplus/ency/article/000739.htm"^^ . _:vb50948714 . _:vb50948714 . _:vb50948714 . _:vb50948714 "A cognitive disorder resulting from a loss of brain function affecting memory, thinking, language, judgement and behavior."^^ . _:vb50948714 . _:vb50948714 .