1. Department of AnatomyNew York Institute of Technology College of Osteopathic Medicine Northern Boulevard, Old Westbury New York
2. Department of AnatomyHoward University College of Medicine, 520 W St. NW, Numa Adams Building Washington District of Columbia
3. Department of Comparative Biomedical Sciences, Royal Veterinary CollegeStructure and Motion Lab Hawkshead Lane, Hatfield, Hertfordshire, AL9 7TA UK
4. Museum of Comparative Zoology and Department of Organismic and Evolutionary BiologyHarvard University, 26 Oxford Street Cambridge Massachusetts