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Office of Population Affairs
USA	OPA (Health and Human Services)

Office of: 52 phrases in 16 subjects

Abbreviation	14
Ecology	1
Education	3
Energy industry	1
Federal Bureau of Investigation	1
Information technology	1
Meteorology	1
Military	9
NASA	1
Non-governmental organizations	1
Oceanography & oceanology	2
Politics	1
Transport	1
United Nations	1
United States	10
University	4