[1] Ctr Dis Control & Prevent, Natl Immunizat Program, Atlanta, GA 30333 USA
[2] Harbor UCLA Med Ctr, Los Angeles, CA USA
[3] Soroka Med Ctr, IL-84101 Beer Sheva, Israel
[4] Merck & Co Inc, West Point, PA USA
[5] Wyeth Res, Collegeville, PA USA
[6] Calif DHS Immunizat Branch, Berkeley, CA USA
[7] Kaiser Permanente Hlth Care Program, Oakland, CA USA
[8] Netherlands Pharmacovigilance Ctr Lareb, sHertogenbosch, Netherlands
[9] US FDA, Rockville, MD 20857 USA
[10] Walter Reed Army Med Ctr, Washington, DC 20307 USA
[11] Johns Hopkins Univ, Bloomberg Sch Publ Hlth, Baltimore, MD USA
[12] Pennridge Pediat Associates, Sellersville, PA USA
[13] Natl Inst Publ Hlth & Environm, NL-3720 BA Bilthoven, Netherlands
[14] Ctr Dis Control & Prevent, Atlanta, GA USA
[15] Univ Basel, Childrens Hosp, Basel, Switzerland