1. Seattle Science Foundation; Seattle Washington
2. Department of Anatomy; Kurume University School of Medicine; Kurume Fukuoka 830-0011 Japan
3. Dental and Oral Medical Center; Kurume University School of Medicine; Kurume Fukuoka 830-0011 Japan
4. Swedish Neuroscience Institute, Swedish Medical Center; Seattle Washington
5. Department of Anatomical Sciences; St. George's University, St. George's; Grenada