1. Approaches to Prevention and Control of Legionella Infection in Allegheny County Health Care Facilities;Allegheny County Health Department,1997
2. ASHRAE Guideline 12-2000. Minimizing the risk of legionellosis associated with building water systems. American Society of Heating Refrigerating and Air-Conditioning Engineers.
3. Legionella infection risk from domestic hot water;Borella;Emerg. Infect. Dis.,2004
4. Centers for Disease Control and Prevention, 2004. Guidelines for preventing health-care-associated pneumonia, 2003. Morb. Mortal. Wkly. Rep. 53(RR-3), 1-36.
5. Five new Legionella species isolated from water;Dennis;Int. J. Syst. Bacteriol.,1993