380848
The San Diego Regional Fire Helicopter Program was established during the summer of 2002 to fill a dangerous gap in aerial firefighting resources in San Diego County [ 1 ] .
 Diego, San Diego County
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Diego, San Diego County