[1] UNIV CALIF DAVIS,SACRAMENTO MED CTR,CLIN MICROBIOL LABS,SACRAMENTO,CA 95817
[2] UNIV WASHINGTON HOSP,CLIN MICROBIOL LABS,SEATTLE,WA
[3] US FDA,DIV ANTIINFECT DRUG PROD,WASHINGTON,DC
[4] PETER BENT BRIGHAM HOSP,MICROBIOL LABS,BOSTON,MA 02115
[5] UNIV MINNESOTA,DEPT LAB MED,MINNEAPOLIS,MN 55455
[6] US DEPT HEW,PHS,CTR DIS CONTROL,BACTERIOL SECT,ATLANTA,GA 30333
[7] UNIV CALIF IRVINE,ORANGE CTY MED CTR,DEPT INTERN MED,ORANGE,CA
[8] CINCINNATI GEN HOSP,CLIN MICROBIOL LAB,CINCINNATI,OH
[9] CLEVELAND CLIN FDN,DEPT MICROBIOL,CLEVELAND,OH