Factors affecting surveillance data on Escherichia coli O157 infections collected from FoodNet sites, 1996-1999.
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C. Hedberg | W. Keene | Kirk E. Smith | J. Bender | M. Kennedy | T. Rabatsky-Ehr | T. V. Van Gilder | N. Spina | S. Segler | M. Hawkins | A. McNees | Suzanne D Segler | Marguerite A. Hawkins