title: Is "negative" positive?
authors.affiliation: Harborview Medical Center, University of Washington, Seattle, USA.
authors.forename: C M
authors.initials: CM
authors.lastname: Surawicz
mesh_terms: D001426:Bacterial Proteins; D001427:Bacterial Toxins / Q000032:analysis*; D002648:Child; D016360:Clostridioides difficile; D003015:Clostridium Infections / Q000175:diagnosis*; D003967:Diarrhea / Q000209:etiology / Q000382:microbiology*; D004761:Enterocolitis, Pseudomembranous / Q000175:diagnosis*; D004768:Enterotoxins / Q000032:analysis*; D005243:Feces / Q000737:chemistry; D006801:Humans
chemical_list: D001426:Bacterial Proteins; D001427:Bacterial Toxins; D004768:Enterotoxins; C041348:tcdA protein, Clostridium difficile; C031815:toxB protein, Clostridium difficile