title: Preface: hematoporphyrin derivative photoradiation therapy.
mesh_terms: D017324:Hematoporphyrin Derivative; D006415:Hematoporphyrins / Q000627:therapeutic use*; D006801:Humans; D053685:Laser Therapy; D009369:Neoplasms / Q000188:drug therapy*; D010778:Photochemotherapy; D011838:Radiation-Sensitizing Agents / Q000627:therapeutic use*
chemical_list: D006415:Hematoporphyrins; D011838:Radiation-Sensitizing Agents; D017324:Hematoporphyrin Derivative