| Mayo Clinic Staff. "From Bacteria to Parasites: Understanding the Germs that Cause Infection." MayoClinic.com. 22 Apr. 2005. Mayo Foundation for Medical Education and Research. 20 May 2005 <http://www.mayoclinic.com/invoke.cfm?objectid=4AB9865B-F003-4EA8-8035101E82FDFF71>. |
Source: Medical Disability Advisor