1 EXHIBIT A AGREEMENT OF JOINT FILING In accordance with Rule 13d-1(f) under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing on behalf of each of them of a Statement on Schedule 13D, or any amendments...American International Group Inc • August 25th, 2000 • Fire, marine & casualty insurance
Company FiledAugust 25th, 2000 Industry
Agreement Regarding Joint Filing and Power of AttorneyExpress Scripts Inc • October 22nd, 1999 • Services-specialty outpatient facilities, nec
Company FiledOctober 22nd, 1999 IndustryThe undersigned, for good and valuable consideration, hereby agree that they shall jointly file an acquisition statement under Section 13(d) of the Securities Exchange Act of 1934, as amended, with respect to the acquisition by the undersigned of shares of common stock of PlanetRx.com, Inc., a Delaware corporation, and that they shall cooperate with each other regarding the filing, and when appropriate, amending of such acquisition statement.