1. 1) U.S. Department of Labor, Bureau of Labor Statistics. Welding, Soldering, and Brazing Machine Setters, Operators, and Tenders. http://www.bls.gov/oes/2004/may/oes514122.htm. Accessed May 20, 2004.
2. 2) NIOSH (1988) Criteria for a Recommended Standard: Welding, Brazing, and Thermal Cutting. from http://www.cdc.gov/niosh/88-110.html.
3. 3) Sjogren B (2004) Fluoride exposure and respiratory symptoms in welders. Int J Occup Environ Health 10, 310-2.
4. Particulate and Gaseous Emissions When Welding Aluminum Alloys
5. 5) Lockey JE, Schenker MB, Howden DG, Desmeules MJ, Saracci R, Sprince NL, Harber PI (1988) Current issues in occupational lung disease. Am Rev Respir Dis 138, 1047-50.