[Trend of occupational radiation exposure at nuclear power plants].
D000393:Air Pollutants / Q000032:analysis*; D000395:Air Pollutants, Occupational / Q000032:analysis; D000396:Air Pollutants, Radioactive / Q000032:analysis*; D006801:Humans; D007564:Japan; D009688:Nuclear Reactors; D009784:Occupational Diseases / Q000517:prevention & control*; D011210:Power Plants; D011829:Radiation Dosage; D011832:Radiation Injuries / Q000517:prevention & control*
D000393:Air Pollutants; D000395:Air Pollutants, Occupational; D000396:Air Pollutants, Radioactive