_:vb50952149 . _:vb50952149 . _:vb50952149 . _:vb50952149 . _:vb50952149 "url:https://www.ncbi.nlm.nih.gov/pubmed/21150046"^^ . _:vb50952149 "A teratoma that is located_in the central nervous system."^^ . _:vb50952149 .