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2. Tumor localizing components of porphyrin preparation hematoporphyrin-derivative;Kessel;Cancer Res,1983
3. Identification of singlet oxygen as the cytotoxic agent in photoinactivation of a murine tumor;Weishaupt;Cancer Res,1976
4. Photoradiation therapy: kinetics and dynamics of porphyrin uptake and loss in normal and malignant cells in culture;Chang;Radiat Res,1978
5. Cellular effects of hematoporphyrin derivative photodynamic therapy on normal and neoplastic rat bladder cells;Shulok;Am J Pathol,1986