Sentence:  The American Registry of Pathology operates as a cooperative enterprise in medical research and education between the Armed Forces Institute of Pathology and the civilian medical profession on a national and international basis , under such conditions as may be <WSD>agreed</WSD> upon between the National Research Council and The Surgeons General of the Army , Navy , and Air Force . 
Meaning of the word marked with <WSD> tags:  be in accord; be in agreement