4Godfrey H. Older people, continence care and catheters: dilemmas and resolutions[J]. BrJ Nuts 2008 17(9):4-11.
5Ellen H, Elpern,Kathryn K,et al. Reducing use of indwelling uri- nary catheters and associated urinary tract infection[J].American Journal of Critical Care, 2009, 18(6): 535-541.