1. Dental director, Clark County Community College, Dental Hygiene Program, 3200 E. Cheyenne Ave. Las Vegas, NV 89030; adjunct professor of biology, University of Nevada at Las Vegas; adjunct associate clinical professor of forensic dentistry, Northwestern University, Evanston, IL; and deputy coroner, chief dental examiner, Clark County, NV. US.
2. Chief of forensic dentistry, Los Angeles County; dental director, University of Southern California Medical Center, Los Angeles, CA; and clinical professor, University of Southern California School of Dentistry. US.
3. Chief forensic dentist, San Diego and Imperial Counties, CA; chief dental Consultant, U.S. Department of Justice (FBI) and California Department of Justice; and lecturer, University of Texas and San Jose State University. US.
4. Professor of oral diagnosis and oral pathology, Medical University of South Carolina, Charleston, SC and chairman, Odontology Section, American Academy of Forensic Sciences. US.
5. Professor of computer sciences and mathematics, Department of Mathematics, University of Nevada, Las Vegas, NV. US.