1. Research Health Scientist, Veterans Emergency Management Evaluation Center, U.S. Dept. of Veterans Affairs, 16111 Plummer St., MS-152, North Hills, CA 91343 (corresponding author).
2. Research Health Scientist, Veterans Emergency Management Evaluation Center, U.S. Dept. of Veterans Affairs, 16111 Plummer St., MS-152, North Hills, CA 91343; Lecturer, Dept. of Social Welfare, Univ. of California, Los Angeles, CA 90095.
3. Health Science Specialist, Veterans Emergency Management Evaluation Center, U.S. Dept. of Veterans Affairs, 16111 Plummer St., MS-152, North Hills, CA 91343.
4. Director, Veterans Emergency Management Evaluation Center, U.S. Dept. of Veterans Affairs, 16111 Plummer St., MS-152, North Hills, CA 91343; Adjunct Professor, Dept. of Health Policy and Management, Fielding School of Public Health, Univ. of California, Los Angeles, CA 90095; Adjunct Professor, UCLA School of Nursing, Los Angeles, CA 90095.