Established in 1986, Great Smokies Diagnostic Laboratory has helped pioneer the field of laboratory functional testing. Functional testing assesses the dynamic inter-relationship of physiological systems, thereby creating a more complete picture of one's health, unlike traditional allopathic testing, which is more concerned about the pathology of disease. By supporting the practitioner in identifying the root cause of chronic conditions, functional testing helps the practitioner to develop optimal interventions to assist patients in their quest for achieving lasting health. GSDL.com is one of many examples of Great Smokies' commitment to educating physicians and patients and to providing the medical community with the latest in clinical information. In addition to our web site, GSDL sponsors intensive continuing education programs for healthcare practitioners and creates electronic materials, such as an e-mail newsletter, educational CDs and on-line presentations, along with print materials for professionals and their patients