**Author details**

Tatsujiro Suzuki Research Center for Nuclear Weapons Abolition, Nagasaki University (RECNA), Nagasaki, Japan

\*Address all correspondence to: suzukitatu@nagasaki-u.ac.jp

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
