A process to produce a liquid crystalline polymer film comprises electrostatically depositing a fine powder of liquid crystalline polymer resin onto a carrier and fusing the deposited fine powder to form a liquid crystalline polymer film that is isotropic in the x-y plane. During operation, the system receives a request for a telephony service at a telephony controller. Also included is a method of determining tumor aggressiveness or the number or proportion of cancer cells in the enriched sample by detecting telomerase activity, nucleic acid or expression after enrichment of rare cells.