title: What is an appropriate control group to identify risk factors for Clostridium difficile-associated diarrhoea?
authors.forename: A
authors.initials: A
authors.lastname: Guyot
authors.forename: S P
authors.initials: SP
authors.lastname: Barrett
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology; D017291:Clarithromycin / Q000494:pharmacology; D016360:Clostridioides difficile / Q000187:drug effects / Q000302:isolation & purification; D003967:Diarrhea / Q000382:microbiology; D004761:Enterocolitis, Pseudomembranous / Q000382:microbiology; D006801:Humans; D012107:Research Design / Q000592:standards; D012307:Risk Factors
chemical_list: D000900:Anti-Bacterial Agents; D017291:Clarithromycin