1. Medical Chemical Defense Research Program, US Army Medical Research and Development Command, Fort Detrick, Frederick, MD 21701
2. Neurotoxicology Branch, Physiology Division, US Army Medical Research Institute of Chemical Defense, Aberdeen Proving Ground, MD 21010
3. Medical Chemical Defense Research Program, US Army Medical Research and Development Command, Current address: Engineering & Economic Research, Inc., 20251 Century Blvd., Germantown, MD 20767