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2. Totally implanted venous and arterial access system to replace external catheters in cancer treatment;Niederhuber;Surgery,1982
3. A randomized, prospective trial of conventional vascular ports vs. the vortex clear-flow reservoir port in adult oncology patients;Stevens;J Vasc Access Devices,2000
4. Guidelines for the prevention of intravascular catheter-related infections. Centers for Disease Control and Prevention;O'Grady;MMWR Recomm Rep,2002
5. Vortex implantable ports literature Latham (NY) AngioDynamics 2014