EGF and neoplasm: Equivalent amounts of aspirate tumor tissue collected from 9 different patients were cultured on SLiCE and in four media formulations: (1) the media used to culture tumor-bearing OBSCs (BSM); (2) serum-free neurobasal media with EGF and FGF (EF); (3) a neurobasal-based media recipe used by the Ian’s Friends Foundation (IFF); and (4) DMEM with 10% FBS.