EXHIBIT A AGREEMENT PURSUANT TO RULE 13D-1(F)(1) The undersigned persons agree and consent to the joint filing on their behalf of this Schedule 13G in connection with their beneficial ownership of the common stock of Oncor, Inc. at December 31, 1997...Schedule 13g Joint Filing Agreement • February 17th, 1998 • Clover Capital Management Inc /Ny/ • In vitro & in vivo diagnostic substances
The undersigned persons agree and consent to the joint filing on their behalf of this Schedule 13G in connection with their beneficial ownership of the common stock of Oncor, Inc. at December 31, 1997 and agree that this filing is filed on behalf of each of them.
