Photochemotherapy 42 article 38 photodynamic therapy 36 Aminolevulinic Acid 32 Animals 32 Mice 32 controlled study 32 Photodynamic therapy 30 aminolevulinic acid 30 Photosensitizing Agents 28 Porphyrins 28 nonhuman 28 priority journal 28 mouse 26 animal cell 24 porphyrin 22 Mice, Inbred BALB C 18 unclassified drug 18 Cell Survival 16 Male 16 animal model 16 Adenocarcinoma 14 Liposomes 14 PDT 14 animal experiment 14 animal tissue 14 human 14 liposome 14 male 14 photosensitizing agent 14