Antimicrobial lock solutions for the prevention of infections associated with intravascular catheters in patients undergoing hemodialysis: systematic review and meta-analysis of randomized, controlled trials - Yahav,D.; Rozen-Zvi,B.; Gafter-Gvili,A.; Leibovici,L.; Gafter,U.; Paul,M. (Clin Infect Dis, 2008)