1. The Easy Gallbladder;A.N.N.O.T.A.T.I.O.N.;Lancet,1956
2. Further studies on the accuracy of oral cholecystography;BAKER, H.L.; HODGSON, J.R.;Radiology,1960
3. Late results following cholecystectomy in 1930 cases;BODVALL, B.;Acta chirurgica Scandinavica,1964
4. Symptoms after cholecystectomy;BURNETT, W.; SHIELDS, R.;Lancet,1958
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