"Operations, Surgical." . . "Surgical Procedures, Operative classification Great Britain." . . "Great Britain." . . "Surgical Procedures, Operative classification." . . "Great Britain. Office of Population Censuses and Surveys." . . . "Tabular list of the classification of surgical operations and procedures" . "Tabular list of the classification of surgical operations and procedures"@en . "SURGERY, OPERATIVE"@en . . . . . . "Classification" . "Classification"@en . . . . . . . "Tabular list of the classification of surgical operations"@en . . . . . . . . . . "Operations, Surgical Great Britain Classification." . .