EXHIBIT 10.13 SOFTWARE SALE, LICENSE AND DEVELOPMENT AGREEMENT This is a Software Sale, License and Development Agreement ("Agreement") dated as of January 20, 1999, (the "Effective Date") by and between Empower Health Corporation ("EHC"), a Texas...Software Sale, License and Development Agreement • June 4th, 1999 • Drkoop Com • Services-misc health & allied services, nec • Delaware
