1. From the Department of Functional and Clinical Anatomy, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany; the
2. From the Department of Functional and Clinical Anatomy, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany; the2Department of Cell and Matrix Biology, Institute of Zoology, Johannes Gutenberg University Mainz, Mainz, Germ
3. Medical Research Centre, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany.
4. Department of Cell and Matrix Biology, Institute of Zoology, Johannes Gutenberg University Mainz, Mainz, Germany; and the