| http://www.w3.org/ns/prov#value | - In order to mitigate both the effects of low perfusion flow rates and of overdosing or underdosing a vessel, other catheters, such as centering catheters have developed structures which compliantly engage, or self-fit within, the walls of the vessel to both deliver an approximately uniform dose of radiation and to maintain the catheter position within the vessel.
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