title: [The HYGEA Study].
authors.forename: J F
authors.initials: JF
authors.lastname: Riemann
mesh_terms: D015169:Colony Count, Microbial; D003428:Cross Infection / Q000382:microbiology / Q000635:transmission; D004203:Disinfection; D020776:Endoscopes, Gastrointestinal / Q000382:microbiology*; D004866:Equipment Contamination / Q000517:prevention & control*; D006801:Humans; D012307:Risk Factors