van Saene H K F, Weir W I, de la Cal M A, Silvestri L, Petros A J, Barrett S P
Department of Medical Microbiology, University of Liverpool and Department of Clinical Microbiology/Infection Control, Royal Liverpool Children's NHS Trust Liverpool, Duncan Building, Daulby Street, Liverpool L69 3GA, UK.
J Hosp Infect. 2004 Mar;56(3):170-4. doi: 10.1016/j.jhin.2004.01.018.