2. Methods
INTRODUCTION
DATA COLLECTION
DATA QUALITY AND VALIDATION
ADVISORY GROUPS
DATA ANALYSIS
CHAPTER REFERENCES
n = number of cases where information was provided

 

REFERENCES

1 Tabular list of the classification of surgical operations and procedures. Fourth revision. Office of Population Censuses and Surveys. HMSO, 1993

2 Provision of endoscopy related services in District General Hospitals. BSG Working Party Report, 2001. www.bsg.org.uk/pdf_word_docs/endo_related_services.pdf