Comprehensive assessment of serious adverse events following immunization by health care providers

S. Elizabeth Williams, Kathryn M. Edwards, Roger P. Baxter, Philip S. Larussa, Neal A. Halsey, Cornelia L. Dekker, Claudia Vellozzi, Colin D. Marchant, Peter D. Donofrio, Tyler E. Reimschisel, Melvin Berger, Jane F. Gidudu, Nicola P. Klein