1. Center for Forensic Science Research and Education, Fredric Rieders Family Foundation, 2300 Stratford Avenue, Willow Grove, PA 19090, USA
2. NMS Labs, 3701 Welsh Road, Willow Grove, PA 19090, USA
3. Arcadia University, 450 S Easton Road, Glenside, PA 19038, USA
4. New York State Police Forensic Investigation Center, 1220 Washington Avenue, Building 30, Albany, NY 12226-3000, USA
5. Wisconsin State Laboratory of Hygiene, 2601 Agriculture Drive, PO Box 7996, Madison, WI 53707-7996, USA
6. New Hampshire Department of Safety, Division of State Police Forensic Laboratory, 33 Hazen Drive, Concord, NH 03305, USA
7. Sam Houston State University, 1003 Bowers Boulevard, Huntsville, TX 77341, USA
8. University of Maryland School of Medicine, 655 W. Baltimore Street, Baltimore, MD 21201, USA