controlled study 8 human 8 human cell 8 Cell Survival 6 Humans 6 apoptosis 6 article 6 Apoptosis 4 Cell Line, Tumor 4 HEp 2 cell 4 Liposomes 4 Necrosis 4 Photochemotherapy 4 Photosensitizing Agents 4 cell death 4 cell survival 4 chemistry 4 cytotoxicity 4 enzyme activity 4 glutathione 4 glutathione transferase 4 photodynamic therapy 4 unclassified drug 4 2,3,9,10,16,17,23,24 octakis(decyloxy)phthalocyaninato zinc 2 5 (4 trimethylammoniumphenyl) 10,5,20 tris (2,4,6 trimethoxyphenyl) porphyrin 2 5 aminolevulinic acid 2 Aminolevulinic Acid 2 Article 2 Cancer 2 Carcinoma 2