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COLONOSCOPY AND DOUBLE CONTRAST BARIUM ENEMA EXAMINATION IN CHRONIC ULCERATIVE COLITISR. R. G. WARWICK, B.SC., M.B., CH.B., M.R.C.P.(U.K.), M. D. SUMERLING, B.SC., M.B., CH.B., M.R.C.P., F.R.C.P.E., F.F.R., D.M.R.D., H. M. GILMOUR, M.B., CH.B. and D. J. C. SHEARMAN, PH.D., M.B., CH.B., F.R.C.P.E.Audio Available | Share
Warwick et al. (1973) studied this question.