ICD-9 Codes and Surveillance for Clostridium difficile–associated Disease
Erik Dubberke* , Kimberly Reske*, L. Clifford McDonald†, and Victoria Fraser*‡
Author affiliations: *Washington University in St. Louis–School of Medicine, Saint Louis, Missouri, USA; †Centers for Disease Control and Prevention, Atlanta, Georgia, USA; ‡Barnes-Jewish Hospital, Saint Louis, Missouri, USA
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