The subpoenaed information must be highly relevant to a claim or defense in the underlying litigation and there must be compelling need for the disclosure. Norandal USA, Inc. v. Local Union No. 7468, No.: CV-86-136, 13 Med. L. Rptr. 2167 (Jackson County, Ala. Cir. Ct., Sept. 11, 1986). A compelling interest or need has been defined as "going to the very heart of the matter." Id. In Cowan v. Community Home Banc, Inc., No.: CV-01-4028, 31 Med. L. Rptr. 2498, 2501 (Jefferson County, Ala. Cir. Ct., Feb.