New page: Study of the distribution of disease, or other health-related conditions and events in human or animal populations, in order to identify health problems and possible causes. ==References==...
Study of the distribution of disease, or other health-related conditions and events in human or animal populations, in order to identify health problems and possible causes.
==References==
[http://www.fsis.usda.gov/Help/A-Z_Index/index.asp USDA Index]