1. Department of Pathology and Anatomical Sciences, University of Missouri, Columbia, MO 65211, USA
2. Department of Biology, Albright College, Reading, PA 19612, USA
3. Department of Clinical Anatomy and OPP, Rocky Vista University, Parker, CO 80134, USA
4. Florida Aquarium, Tampa, FL 33602, USA
5. University of Missouri Kansas City School of Dentistry, Kansas City, MO 64108, USA