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2. The non-value of sputum culture in the diagnosis of pneumococcal pneumonia;BARRETT-CONNOR, E.;American Review of Respiratory Diseases,1971
3. Prevalence of gall stones in Dundee: a necropsy study;BATESON, M.C.; BOUCHIER, I.A.D.;British Medical Journal,1975
4. Non-operative removal of bile duct stones by endoscopic sphincterotomy;COTTON, P.B.;British Journal of Surgery,1980
5. Some bacteraemias encountered in hospital practice;CROWLEY, N.;Journal of Clinical Pathology,1970