- *Injury Epidemiology Section, Military Performance Division, U.S. Army Research Institute of Environmental Medicine, 42 Kansas Street, Natick, MA 01760-5007. - †Social Sectors Development Strategies, 1411 Washington Street, Suite 6, Boston, MA 02118. 
The opinions or assertions contained herein are the private views of the author(s) and are not to be construed as official or reflecting the views of the Army or the Department of Defense. Any citations of commercial organizations and trade names in this report do not constitute an official Department of the Army endorsement of approval of the products or services of these organizations.