A recording unit (30) records implementation information on a medical treatment performed on a patient. An extraction unit (22) extracts information necessary to prepare an interview result of an interview item for the patient, from the implementation information recorded in the recording unit (30). A preparation unit (24) prepares the interview result by referring to the information extracted by the extraction unit (22), and prepares interview sheet data from the interview result and the interview item corresponding to the interview result.
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