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Date: 2015-04-20 21:22:57Nuclear physics Radiobiology Tōhoku region Sievert Radiography Ionizing radiation Background radiation Fukushima Daiichi Nuclear Power Plant Namie Fukushima Radioactivity Medicine Radiation | Add to Reading ListSource URL: www.mext.go.jpDownload Document from Source WebsiteFile Size: 212,65 KBShare Document on Facebook |