1. Laboratory of Functional and Evolutive Morphology, Institut de chimie, Bâtiment B6, University of Liège, 4000 Liège, Belgium
2. Cellular and Tissular Biology, Institut de chimie, Bâtiment B6, University of Liège, 4000 Liège, Belgium
3. General Biology and Ultrastructural Morphology, University of Liège, 4000 Liège, Belgium