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Taha AS, Boothman P, Holland P, McKinlay A, Upadhyay R, Kelly RW, Lee F, Russell RI.Taha AS, et al. Among authors: upadhyay r.Am J Gastroenterol. 1990 Jan;85(1):47-50.Am J Gastroenterol. 1990.PMID: 2296963
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Park RH, Danesh BJ, Upadhyay R, Howatson AG, Lee FD, Russell RI.Park RH, et al. Among authors: upadhyay r.Postgrad Med J. 1990 Sep;66(779):720-3. doi: 10.1136/pgmj.66.779.720.Postgrad Med J. 1990.PMID: 2235802Free PMC article.
Upadhyay R, Park RH, Russell RI, Danesh BJ, Lee FD.Upadhyay R, et al.Br Med J (Clin Res Ed). 1987 Oct 17;295(6604):958-9. doi: 10.1136/bmj.295.6604.958-a.Br Med J (Clin Res Ed). 1987.PMID: 3119126Free PMC article.No abstract available.
Upadhyay R, Taha AS, Sturrock RD, Russell RI.Upadhyay R, et al.Lancet. 1989 Jan 28;1(8631):212-3. doi: 10.1016/s0140-6736(89)91220-8.Lancet. 1989.PMID: 2563111No abstract available.