title: X-irradiation of human cells in culture in the presence of haematoporphyrin.
mesh_terms: D002460:Cell Line; D002470:Cell Survival; D002478:Cells, Cultured / Q000528:radiation effects*; D004307:Dose-Response Relationship, Radiation; D006415:Hematoporphyrins / Q000494:pharmacology*; D006801:Humans; D066298:In Vitro Techniques; D010100:Oxygen; D011838:Radiation-Sensitizing Agents; D014965:X-Rays
chemical_list: D006415:Hematoporphyrins; D011838:Radiation-Sensitizing Agents; D010100:Oxygen