504in the Fukushima Daiichi Nuclear Power Plant. Although this value is recommended by International Commission on Radiologica1 Protection (ICRP), long-term follow-up is needed for the workers as well as monitoring their potential cancer risk. Establishing a system to protect the well-being of citizens in Fukushima Prefecture and the decontamination workers is urgently required.CONCLUSION Despite the fact that almost half year has passed since the disaster, we are still recovering from the nuclear accident. Those who were forced to evacuate have been suffering from unbearable agony. It is crucially important to learn lessons from the accident at the Chernobyl Nuclear Power Plant, which happened 25 years ago, in order to revive Fukushima and to provide the citizens with a sense of security. In this paper, we wrote evidences which were approved by United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR), IAEA, WHO, and other autholized organizations because we believe that scientists are required to be sensitive to the accuracy of information when they send it to the society. Unfortunately, some professionals have presented health impacts in Chernobyl through mass media when that fact was not internationally agreed with and we think that is beneath one's dignity.REFERENCES1. Christodouleas JP, Forrest RD, Ainsley CG, Toch-ner Z, Hahn SM, Glatstein E. Short-term and long-term health risks of nuclear-power-plant ac-cidents. N Engl J Med, 364(24) : 2334-2341, 2011.2. Saenko V, Ivanov V, Tsyb A, Bogdanova T, Tronko M, Demidchik Y, Yamashita S. The Chernobyl ac-cident and its consequences. Clin Oncol (R Coll Radiol), 23(4) : 234-243, 2011.3. World Health Organization. Heath effects of the Chernobyl accident and special health care pro grammes. In : Bennett B, Repachoi M, Carr Z, eds. Report of the UN Chernobyl Forum Expert Group “Health". Geneva, 2006.4. Demidchik YE, Saenko VA, Yamashita S. Child-hood thyroid cancer in Belarus, Russia, and Ukraine after Chernobyl and at present. Arq Bras Endocrinol Metabol, 51(5) : 748-762, 2007.5. Cardis E, Kesminiene A, Ivanov V, Malakhova I, Shibata Y, Khrouch V, Drozdovitch V, Maceika E, Zvonova I, Vlassov O, Bouville A, Goulko G, Hoshi M, Abrosimov A, Anoshko J, Astakhova L, Chekin S, Demidchik E, Galanti R, Ito M, Ko-robova E, Lushnikov E, Maksioutov M, Masyakin V, Nerovnia A, Parshin V, Parshkov E, Piliptsevich N, Pinchera A, Polyakov S, Shabeka N, Suonio E, Tenet V, Tsyb A, Yamashita S, Williams D. Risk of thyroid cancer after exposure to 131I in child-hood. J Natl Cancer Inst, 97(10) : 724-732, 2005.6. Demidchik YE, Demidchik EP, Reiners C, Biko J, Mine M, Saenko VA, Yamashita S. Comprehen-sive clinical assessment of 740 cases of surgically treated thyroid cancer in children of Belarus. Ann Surg, 243(4) : 525-532, 2006.7. Yamashita S, Saenko V. Mechanisms of Disease : molecular genetics of childhood thyroid cancers. Nat Clin Pract EndocrinoI Metab, 3(5) : 422-429, 2007.8. Konogorov AP, Ivanov VK, Chekin SY, Khait SE. A case-control analysis of leukemia in accident emergency workers of Chernobyl. J Environ Pathol Toxicol Oncol, 19(1-2) : 143-151, 2000.9. Buzunov VA, Strapko NP, Pirogova EA, Kras-nikova LI, Bugayev VN, Korol NA, Treskunova TV, Ledoschuk BA, Gudzenko NA, Bomko EI, Bobyl-eva OA, Kartushin GI. Epidemiological survey of the medical consequences of the Chernobyl ac-cident in Ukraine. World Health Stat Q, 49(1) : 4-6, 1996.LESSONS FROM CHERNOBYL