1. Guidelines for the establishment of a gastrointestinal endoscopy area in hospitals and private office. ASGE, 1981.
2. Five years experience of a gastroenterology day-care unit;Northfield;Lancet,1983
3. The gastrointestinal diagnostic unit in the community hospital;Schapiro;Gastrointest Endosc,1982
4. Practical gastrointestinal endoscopy,1983
5. Space requirements and physical setup;Manier;Practical Gastroenterology,1984