1. Photoradiation therapy for the treatment of malignant tumors;Dougherty;Cancer Res.,1978
2. Therapeutische versuche mit fluoresnierenden Stoffe;Tappenier;Muench Med. Wochschr.,1903
3. Photodynamic therapy of malignant tumors;Diamond;Lancet,1972
4. Photodynamic destruction of human bladder carcinomas;Kelly;Brit. J. Cancer,1975
5. Identification of singlet oxygen as the cytotoxic agent in photo-inactivation of a murine tumor;Weishaupt;Cancer Res.,1976