1. 
   Population at Risk
   A population subgroup that is more likely to be exposed to a chemical, or is more sensitive to the chemical, than is the general population.
   Found op http://www.epa.gov/OCEPAterms/
   
   
2. 
   population-at-risk
   Persons who can and may develop an adverse health effect and who are potentially exposed to a substance under...
   Found op http://sis.nlm.nih.gov/enviro/iupacglossary/glossaryp.html
   
   

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