1. Department of Anatomical Sciences; School of Medicine, St George's University; Grenada West Indies
2. Department of Anatomy; Varmia and Mazuria Medical School; Olsztyn Poland
3. Department of Anatomy; Jagelonian University Medical School; Krakow Poland
4. School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki; Thessaloniki Greece
5. Seattle Science Foundation; Seattle Washington