Table 4.

Institutions with the greatest contributions to the field (N=156).

Institution	Publications, n (%)
Harvard University	8 (13)
Stanford University	8 (13)
Duke University	7 (11)
US Department of Veteran Affairs	7 (11)
VA Palo Alto Health Care System	7 (11)
VA Boston Healthcare System	6 (10)
Durham VA Medical Center	5 (8)
Boston University	4 (7)
Harvard Medical School	4 (7)
Medical University of South Carolina	4 (7)
University of California System	4 (7)
University of Washington	4 (7)
University of Washington Seattle	4 (7)