I. Piccini - Monasterium Laboratory, Muenster, Germany
M. Sousa - Monasterium Laboratory, Muenster, Germany
J. Edelkamp - Monasterium Laboratory, Muenster, Germany
F. Jiminez - Mediteknia, Las Palmas Gran Canaria, Spain
A. Rossi - Facoltà di Medicina e Odontoiatria, Sapienza University, Rome, Italy
R. Paus - Monasterium Laboratory, Muenster, Germany
M. Bertolini - Monasterium Laboratory, Muenster, Germany