_:vb50954659 . _:vb50954659 "url:https://www.ncbi.nlm.nih.gov/pubmed/20212374"^^ . _:vb50954659 . _:vb50954659 "An ovarian biphasic or triphasic teratoma that is composed exclusively of mature tissues derived from two or three germ layers (ectoderm, mesoderm and endoderm)."^^ . _:vb50954659 . _:vb50954659 . _:vb50954659 .