Drs. Richard and Vikki Petersen are the co-founders of HealthNOW Medical Center and co-authors of "The Gluten Effect." They are experts in the field of gluten sensitivity and celiac disease and "The Gluten Effect," is highly recommended by best selling author, Dr. Mark Hyman.For more on Dr. Vikki Petersen: http://www.thegluteneffect.com http://www.healthnowmedical.com http://glutendoctors.blogspot.com http://www.facebook.com/drvikki.petersen http://www.youtube.com/healthnowmedical "