Dr. Margarita Valdés graduated as M.D. at Autonomous University of Coahuila in 1989; as a Genetic specialist at National Autonomous University of Mexico in 1995, as a M.S. in 1999 and as a Ph.D. in 2002 at the same University. From 1998, she has been working at National Rehabilitation Institute as Genetics specialist and Researcher. She is professor in the Program of Masters and PhD in Medical Sciences and in the Genetics Specialty of Medicine Faculty at National Autonomous University of Mexico. Actually she is member of the National System of Researchers, of the Mexican Academy of Sciences and of the Mexican Academy of Surgery. Between her lines of research highlights the investigation of the genetic component of Mexican population in relation to osteoporosis. Most of her published articles are related with this investigations.