[1] UNIV EDINBURGH, DEPT MICROBIOL, EDINBURGH EH8 9AG, MIDLOTHIAN, SCOTLAND
[2] INNOGENET, B-9052 GHENT, BELGIUM
[3] UNIV SO CALIF, DEPT MED, DIV GASTROINTESTINAL & LIVER DIS, LOS ANGELES, CA 90033 USA
[4] NAGOYA CITY UNIV, SCH MED, DEPT INTERNAL MED 2, NAGOYA, AICHI 467, JAPAN
[5] VET AFFAIRS MED CTR, ST LOUIS, MO USA
[6] UNIV MIAMI, MIAMI, FL 33152 USA
[7] RHODE ISL HOSP, PROVIDENCE, RI 02902 USA
[8] BROWN UNIV, PROVIDENCE, RI 02912 USA
[9] ALTON OCHSNER MED FDN & OCHSNER CLIN, NEW ORLEANS, LA 70121 USA
[10] MASSACHUSETTS GEN HOSP, BOSTON, MA 02114 USA
[11] UNIV LOUISVILLE, LOUISVILLE, KY 40292 USA
[12] UNIV COLORADO, DENVER, CO 80202 USA
[13] ARMED FORCES INST PATHOL, WASHINGTON, DC 20306 USA
[14] SCHERING PLOUGH CORP, RES INST, KENILWORTH, NJ 07033 USA