A balloon resection method is disclosed generally comprising inserting a catheter with at least one balloon having an outer wall with a resecting, non-slip surface for resecting unwanted biological material, such as tissues or tumors, and supplying fluid thereto in pulsed fashion to repeatedly deflate and inflate the balloon. 1 mm or less, on broad-area surfaces after non-in situ processing. The functional information can be exchanged by an optimum method matching the form of connection to the Internet. There is provided a pressure-sensitive composition comprising an ionic liquid, and a polymer containing, as a monomer component, 0. One primary form of interaction involves selecting a pixel of a displayed image whereupon the representative image identified in the index image at a corresponding pixel location is displayed in lieu of the currently displayed image.