J. Krieger , (Europe & Rest of World): Faculté de Médecine, Université Louis Pasteur, Strasbourg, France. Postal address: 6 Chemin Rochas, F-26540 Mours St. Eusebe, France fax: +33 3-88-11-51-53 email: krieger.jean@laposte.net
M. V. Vitiello , (North & South America): University of Washington, Box 356560, Seattle, WA 98195-6560, USA fax: +1 206-543-9520 email: vitiello@u.washington.edu