Andreas Schwiertz Professor, Dr.rer.nat. Institut für Mikroökologie Auf den Lüppen 8 D-34745 HERBORN, GERMANY
John Bienenstock Professor, M.D. Director, The Mcmaster Brain-Body Institute St. Joseph’s Healthcare Hamilton 50 Charlton Avenue East HAMILTON, ONTARIO L8N 4A6, CANADA
Peter J. Heidt Professor, Dr. Department of Pediatrics Leiden University Medical Center P.O. Box 9600, 2300 RC LEIDEN, THE NETHERLANDS