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The demand for laboratory-based teaching and training is increasing worldwide as medical training and education confront the pressures of shorter training time and rising costs. This article presents a cost-effective perfusion technique that extends the useful life of fresh tissue. Refrigerated cadavers are preserved in their natural state for up to 45 days with a daily working period of ten hours. Tissues maintain their color and natural consistency throughout this period. This new process for preservation of tissue opens the door to improved surgical training and to numerous research opportunities. (Contains 3 figures.)