"childhood leptomeningeal melanoma"^^ . _:vb50954552 . "NCI:C5318"^^ . . _:vb50954552 . . _:vb50954552 . . . "disease_ontology"^^ . "pediatric leptomeningeal melanoma"^^ . "UMLS_CUI:C1332976"^^ . _:vb50954552 . "DOID:6089"^^ . _:vb50954552 . .