A resist composition comprises a polymer which increases its alkali solubility under the action of an acid as a base resin, and a copolymer comprising recurring units containing a sulfonic acid amine salt and recurring units containing at least one fluorine atom as an additive. In particular, dynamic number users are able to obtain dynamic numbers and to map those numbers to routable numbers of their choosing. In another preferred embodiment, a circumferential brush will be used that allows testing of the integrity of the internal coating throughout the length of the pipe as the robot travels the pipeline. Furthermore, mechanical properties of prosthesis are matched with mechanical properties of the host vessel, thereby overcoming problems of compliance mismatch. The activity of giving the appropriate medical item to each respective patient is recorded in the portable terminal as medical items are given to a plurality of patients.