1. Axelson, O., Dahlgren, E., Jansson, C.-D., Rehnlund, S. O.: Arsenic exposure and mortality: a case-referent study from a Swedish copper smelter. Br. J. Ind. Med. 35, 8?15 (1978)
2. Braun, W.: Carcinoma of the skin and internal organs caused by arsenic. German Med. Monthly 3, 321?324 (1958)
3. Bruun-Petersen, G., Christiansen, J. V., Voetmann, E., Therkelsen, A. J.: Chromosome aberrations in affected and unaffected skin of patients with psoriasis. Acta Derm. Venereol. (Stockh.) 54, 141?151 (1974)
4. Buckton, K. E., Evans, H. J. (eds.): Methods for the analysis of human chromosome aberrations. Geneva: WHO 1973
5. Burgdorf, W., Kurvink, K., Cervenka, J.: Elevated sister chromatid exchange rate in lymphocytes of subjects treated with arsenic. Hum. Genet. 36, 69?72 (1977)