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The International Tree-Ring Data Bank ( ITRDB ) is a data repository for tree ring measurements that has been maintained since 1990 by the United States ' National Oceanic and Atmospheric Administration Paleoclimatology Program and World Data Center for Paleoclimatology .
 National Oceanic and Atmospheric Administration
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 National Oceanic and Atmospheric Administration