Fatal Pseudomembranous Colitis Associated with a Variant Clostridium difficile Strain Not Detected by Toxin A Immunoassay.
Johnson, Stuart MD; Kent, Sara A. MD; O'Leary, Kevin J. MD; Merrigan, Michelle M. MS; Sambol, Susan P. BS; Peterson, Lance R. MD; Gerding, Dale N. MD
Annals of Internal Medicine.
135(6):434-438, September 18, 2001.
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