title: Comparison of haematoporphyrin derivative and new photosensitizers.
mesh_terms: D004938:Esophageal Neoplasms / Q000188:drug therapy; D006415:Hematoporphyrins / Q000627:therapeutic use*; D006801:Humans; D008175:Lung Neoplasms / Q000532:radiotherapy; D010610:Pharyngeal Neoplasms / Q000188:drug therapy; D010778:Photochemotherapy; D011838:Radiation-Sensitizing Agents / Q000627:therapeutic use*
chemical_list: D006415:Hematoporphyrins; D011838:Radiation-Sensitizing Agents