1. Thorium induced hepatic hemangioendothelioma;Curry;Amer. J. Roentgenol. Radium Therap. Nucl. Med.,1975
2. Industrywide Study of Beryllium Production Facilities;Donaldson;National Institute for Occupational Safety and Health, Internal Report,1973
3. Osteosarcoma from intravenous beryllium compounds in rabbits;Gardner,1946
4. Carcinogenicity of beryllium: Review of the literature;Groth;Environ. Res.,1980
5. Statistics;Hayes,1963