ALB and glioblastoma: EDTA: ethylenediaminetetraacetic acid; HSV-1: herpes simplex virus 1; BBB: blood-brain barrier; HSA: human serum albumin; TEER: transepithelial/transendothelial electrical resistance; PET: positron emission tomography; GAG: glycosaminoglycan; PDT: photodynamic therapy; MRI: magnetic resonance imaging; GBM: glioblastoma multiforme; ELISA: enzyme-linked immunosorbent assay; WHO: World Health Organization