[1] DUKE UNIV,MED CTR,DIV INFECT DIS,DURHAM,NC 27710
[2] CTR DIS CONTROL,DEPT EPIDEMIOL,DIV BACTERIAL DIS,SPECIAL PATHOGENS BRANCH,ATLANTA,GA 30333
[3] UNIV MINNESOTA,DEPT PEDIAT,MINNEAPOLIS,MN 55455
[4] AMER HEART ASSOC,NATL CTR,7320 GREENVILLE AVE,DALLAS,TX 75231