Resources	Terms searched	Hits	Relevant study (non‐duplicate)	Remarks
www.clinicaltrials.gov	Central venous catheter	632	1. Antonelli 2011a 2. Pachl 2010a	Both studies were completed but appear to be not yet published
	catheter* AND impregnat*	56	0
	catheter* AND coat*	65	Steinberg 2009	Completed but appears to be not yet published
	catheter* AND bond*	2	0
www.control‐trials.com	central venous catheter	238	0
	impregnation	9	0
	coating	120	0
www.update‐software.com	central venous catheter* OR impregnat* OR coat* OR bond*	150	0
www.clinicaltrialsresults.org	catheter AND (impregnation OR coating OR bonding)	0	0
http://centrewatch.com/	central venous catheters OR catheter impregnation OR catheter coating OR catheter bonding	0	0