1. Sandler, R. S., Everhart, J. E., Donowitz, M., Adams, E., Cronin, K., Goodman, C., Gemmen, E., Shah, S., Avdic, A. and Rubin R., “The Burden of Selected Digestive Diseases in the United States,” Gastroenterology, Vol. 122, No. 5, pp. 1500–1511, 2002.
2. Bae, T. S., Shin, K. K. and Mu, S. M., “A Musculoskeletal Model for Biomechanical Analysis of Transfemoral Amputees Climbing Stairs,” International Journal of Precision Engineering and Manufacturing, Vol. 9, No. 1, pp. 30–33, 2008.
3. Spechler, S. J., “Epidemiology and Natural History of Gastroesophageal Reflux Disease,” Digestion, Vol. 51, pp. 24–29, 1992.
4. Richter, J. E., “Approach to the Patient with Non-Cardiac Chest Fig. 7 Endoscopic view of the surgical operation (a) The operator can see the interior of stomach by using the camera attached at the tip of the endoscope. (b) Three stitches are joined together by pulling the thread. (c) Another view of the three stitches (c) (a) (b) Pain: In Textbook of Gastro-enterology 2nd ed.,” JB Lippincott, pp. 648–676, 1995.
5. Chuttani, R., “Endoscopic Full-Thickness Plication: the Device, Technique, Pre-Clinical and Early Clinical Experience,” Gastrointestinal endoscopy clinics of North America, Vol. 13, No. 1, pp. 109–116, 2003.