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Representative photographs of animal tumors at four time-points (t = 0, t = 5 days, t = 15 days, and t = 30 days) in untreated control (left), porphysome-PDT (10 mg/kg, 24 h DLI, middle), and Photofrin-PDT (5 mg/kg, 24 h DLI, right) groups.
