title: Dental unit water systems harbor large numbers of microorganisms.
authors.forename: M E
authors.initials: ME
authors.lastname: Merne
authors.forename: M H
authors.initials: MH
authors.lastname: Puranen
authors.forename: S M
authors.initials: SM
authors.lastname: Syrjänen
authors.forename: P M
authors.initials: PM
authors.lastname: Hyvönen
mesh_terms: D018441:Biofilms / Q000254:growth & development; D015169:Colony Count, Microbial; D003428:Cross Infection / Q000209:etiology / Q000517:prevention & control; D003740:Dental Clinics; D003762:Dental Instruments / Q000382:microbiology*; D004866:Equipment Contamination / Q000517:prevention & control*; D005387:Finland; D009894:Opportunistic Infections / Q000517:prevention & control; D011549:Pseudomonas / Q000302:isolation & purification; D014871:Water Microbiology / Q000592:standards*; D014881:Water Supply / Q000032:analysis* / Q000592:standards