1. 1. Ministry of Health Labour and Welfare. The National Health and Nutrition Survey in Japan. 2013. Japanese. http://www.mhlw.go.jp/bunya/kenkou/eiyou/h25-houkoku.html.
2. 2. National Institute of Health Science Analytical Results of Acrylamide in Food. 2002. http://www.mhlw.go.jp/topics/2002/11/tp1101-1a.html.
3. 3. MAFF [Survey results of hazardous chemicals in foods (2003–2010)] 2012. Japanese. http://www.maff.go.jp/j/syouan/seisaku/risk_analysis/survei/pdf/chem_15-22.pdf.
4. 4. MAFF [Survey results of hazardous chemicals in foods (2011–2012)] 2014. Japanese. http://www.maff.go.jp/j/syouan/seisaku/risk_analysis/survei/pdf/chem_23-24_.pdf.
5. 5. MAFF [Information on acrylamide in foods.] Japanese. http://www.maff.go.jp/j/syouan/seisaku/acryl_amide/a_syosai/nousui/info/pdf/150619_shiryou1.pdf.