SCOTTSDALE, AZ--(Marketwire - November 15, 2007) - Medistem Laboratories, Inc. (OTCBB: MDSM) (FRANKFURT: S2U) in collaboration with researchers from the University of Western Ontario, University of Alberta, and the Bio-Communications Research Institute, has published a paper describing a novel stem cell population derived from menstrual blood. The publication, entitled “Endometrial Regenerative Cells: A Novel Stem Cell Population” appeared in today’s Journal of Translational Medicine and is freely available at http://www.translational-medicine.com/content/5/1/57