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Abstract

A database system is provided in a network system capable of exchanging medical data, including at least image data and key data associated therewith, and can store and retrieve the medical data via the network system. The database system has first and second data file devices and a file management device. The first data file device stores image data supplied via the network system in a first rewritable storage. The second data file device stores image data transferred from the first storage in a non-rewritable second storage. The file management device has an index data storage for storing the key data, supplied via the network system, and memory addresses of image data, which correspond to the key data, on the first and second storages in correspondence with each other, and manages storing and reading of the image data in and from the first and second data file devices.

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First Claim