1. This material is licensed by Keio University with the consent of copy right holders.
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  3. This case study is available free of charge as teaching material for non-commercial use through the Creative Commons Deed(http://creativecommons.org/licenses/by-nc-nd/3.0/).

    3-1: If you want to use the material for commercial purpose, we ask for your contribution by paying a part of the material development cost (500 Yen/copy, 1000 Yen per one request)
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    3-4: Please consult by email when your seminar or classes using the material is video taped, and when your usage of the material is not assumed under this license.

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