Exhibit 99.1 PRINCIPAL FINANCIAL GROUP Principal Mutual Life Insurance Company CERTIFIED MAIL AND AIRBORNE --------------------------- December 28, 1995 Winston Millet IRSCO Development Co. Inc. 3875 Wilshire Blvd. Suite 607 Los Angeles, CA 90010...Secured Promissory Note • January 5th, 1996 • Compumed Inc • Services-computer processing & data preparation
