Ministry of Health, Labor and Welfare. About the 6th Comprehensive Prevention Measures Against the Dust Affection. Occupational Health Journal. 2003, 26, 17-22
WESSELIUS, L. J. Alveolar Macrophages Accumulate Iron and Ferritin after in Vivo Exposure to Iron or Tungsten Dusts. J. Lab. Clin. Med. 1996, 127, 401-409
MATEOS, F. Iron Metabolism in Lower Respiratory Tract. Thorax. 1998, 53, 594-600
NIITSU, Y. Tetsutaisya Kenkyu no Genkyo. Rinsyokensa. 2001, 45, 693-698