EXHIBIT 10.39 LICENSE AND DISTRIBUTION AGREEMENT THIS AGREEMENT (the "Agreement") is made between Helena Laboratories Corporation (hereinafter referred to as "Licensor") located at 1530 Lindbergh Drive, Beaumont, Texas 77704-0752 and ChemTrak Inc....License and Distribution Agreement • May 22nd, 1998 • Chemtrak Inc/De • In vitro & in vivo diagnostic substances • Texas
