5-Aminolevulinic Acid (5-ALA)-Induced Protoporphyrin IX Fluorescence by Glioma Cells-A Fluorescence Microscopy Clinical Study. - Pacioni S; D'Alessandris QG; Giannetti S; Della Pepa GM; Offi M; Giordano M; Caccavella VM; Falchetti ML; Lauretti L; Pallini R (Cancers, 2022)