1. Reliability of spinal displacement analysis on plain X-rays: a review of commonly accepted facts and fallacies with implication for chiropractic education and technique;Harrison;J Manipulative Physiol Ther,1998
2. Clinical epidemiology: a basic science for clinical medicine;Sackett,1991
3. How to read clinical journals: II—to learn about a diagnostic test;Sackett;Can Med Assoc J,1981
4. Clinical efficacy of diagnostic imaging: love it or leave it;Thornbury;AJR,1994
5. Formal processes in health care technology assessment: a primer for the chiropractic profession;Hansen;Top Clin Chiro,1996