Professor, Dr. Department of Pediatrics Leiden University Medical Center P.O. Box 9600, 2300 RC LEIDEN, THE NETHERLANDS

Dr.rer.nat. Old Herborn University Foundation, P.O. box 1765 D-35745 HERBORN, GERMANY

Professor, Dr.rer.nat. Institut für Mikroökologie Auf den Lüppen 8 D-34745 HERBORN, GERMANY

M.D., Ph.D. Environmental Exposure and Epidemiology Department Norwegian Institute of Public Health Lovisenberggata 8 N-0456 OSLO, NORWAY

Professor, Dr., Dr. h.c. Zoological Institute Christian-Albrechts-University Kiel Olshausenstraße 40 D-24098 KIEL, GERMANY

Ph.D. 14804 Fireside Dr. SILVER SPRING, MD 20905, USA

Professor, M.D., Ph.D. Microbiology and Tumorbiology Center Karolinska Institutet S-171 77 STOCKHOLM, SWEDEN

Professor, M.D. Women and Children’s Hospital BUFFALO, NY 14222, USA

Professor, M.D., Dr.P.H. Associate Dean of Clinical Research Department of Internal Medicine University of Nevada Reno School of Medicine 1664 North Virginia Street RENO, NV 89557-0357, USA

Professor, D.Sc. Academy of Sciences of the Czech Republic 142 20 PRAGUE 4, CZECH REPUBLIC

Professor, M.D., Ph.D. Baylor College of Medicine Texas Children’s Hospital HOUSTON, TX 77030, USA

Professor, Ph.D. Professor of Surgery and Pediatrics MedStar Georgetown Transplant Georgetown University Hospital 2 Main WASHINGTON, DC 20007 - USA

Honorary Secretary Old Herborn University Foundation, P.O. box 1765 D-35745 HERBORN, GERMANY