Surveillance for safety after immunization: Vaccine Adverse Event Reporting System (VAERS) -- United States, 1991-2001 [corrected] [published erratum appears in MMWR MORB MORTAL WKLY REP 2003 Feb 14;52(6):113]. - Zhou W; Pool V; Iskander JK; English-Bullard R; Ball R; Wise RP; Haber P; Pless RP; Mootrey G; Ellenberg SS; Braun MM; Chen RT; et al. (MMWR: Morbidity & Mortality Weekly Report, 2003)