1Bello TO,Taiwo SS,Oparinde DP,et al.Risk of nosocomial bacteria transmission:evaluation of cleaning methods of probes used for routine ultrasonography.West Afr J Med,2005,24:167-170.
2Karadenz YM,Kilic D.Kara Altan S,et al.Evaluation of the role of ultrasound machines as a source of nosocomial and crossinfection.Invest Radiol,2001,36:554-558.