| http://www.w3.org/ns/prov#value | - A cryosurgical probe comprisingA. a housing B. a hollow tip protruding from the housing, C. means defining an expansion or evaporation chamber in said tip, said means including a surface isolating said chamber from the interior of said housing, D. a refrigerant supply conduit extending through the housing and said surface and projecting a selected distance into the chamber, E. a refrigerant exhaus
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