title: On the role of protoporphyrin IX photoproducts in photodynamic therapy.
mesh_terms: D006801:Humans; D010777:Photochemistry; D010778:Photochemotherapy; D017319:Photosensitizing Agents / Q000737:chemistry; D011524:Protoporphyrins / Q000737:chemistry
chemical_list: D017319:Photosensitizing Agents; D011524:Protoporphyrins; C028025:protoporphyrin IX