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2. The end of an age of optimism;Dollery,1978
3. Cost-effectiveness of duodenal ulcer treatment;Culyer;Soc. Sci. Med.,1981
4. The cast-brace treatment of femoral shaft fractures;Wardlaw;J. Bone Surg,1977
5. Guidelines for admitting patients with myocardial infraction to hospital;Royal College of General Practitioners;Jl R. Coll. gen. Pract.,1974