SCOTTSDALE, AZ -- (MARKET WIRE) -- January 05, 2007 -- Medistem Laboratories, Inc. (OTCBB: MDSM) (FRANKFURT: S2U), committed to the ethical development of next-generation medical therapies from non-controversial adult stem cell sources, announced that it has executed a technology licensing and royalty agreement with the Rio Valley Medical Clinic, an international stem cell therapy clinic. This is the second such licensing agreement reached by the company, and validates Medistem’s business model of licensing its intellectual property.