title: Comment on "Indwelling time and risk of colonization of peripheral arterial catheters in critically ill patients" by Khalifa et al.
authors.forename: Samir G
authors.initials: SG
authors.lastname: Sakka
mesh_terms: D002406:Catheterization, Peripheral / Q000295:instrumentation*; D002408:Catheters, Indwelling / Q000009:adverse effects* / Q000382:microbiology*; D015169:Colony Count, Microbial; D016638:Critical Illness; D003428:Cross Infection / Q000517:prevention & control*; D006801:Humans; D007362:Intensive Care Units; D012307:Risk Factors; D013997:Time Factors