Precision Research & Evaluation, L.L.C.
P.O. Box 644
Greenbelt, Maryland 20768-0644
301-809-9850
866-809-9850 (toll-free) 301-809-9851 (fax)

Contact Dr. Sheila Thompson:contact@precision-r-e.com

Contact Dr. Bertha Gorham:gorham@precision-r-e.com