1. Department of Emergency Medicine, Carolinas Medical Center, Charlotte, NC, USA;
2. Georgia Poison Center, Atlanta, GA, USA;
3. Carolinas Poison Center, Charlotte, NC, USA;
4. Metrolina Nephrology Associates, PA, Charlotte, NC, USA;
5. Carolinas Pathology Group, Charlotte, NC, USA;
6. Forensic Science Department, NMS Laboratories, Willow Grove, PA, USA