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Hallan RI, Williams NS, Hutton MR, Scott M, Pilot MA, Swash M, Koeze TH, Watkins ES.Hallan RI, et al. Among authors: williams ns.Br J Surg. 1990 Feb;77(2):208-13. doi: 10.1002/bjs.1800770226.Br J Surg. 1990.PMID: 2317683
Chapman MA, Grahn MF, Hutton M, Williams NS.Chapman MA, et al. Among authors: williams ns.Br J Surg. 1995 Jan;82(1):36-8. doi: 10.1002/bjs.1800820115.Br J Surg. 1995.PMID: 7881952
Hallan RI, George B, Williams NS.Hallan RI, et al. Among authors: williams ns.Surg Annu. 1993;25 Pt 2:85-115.Surg Annu. 1993.PMID: 8351594Review.No abstract available.
Williams NS, Patel J, George BD, Hallan RI, Watkins ES.Williams NS, et al.Lancet. 1991 Nov 9;338(8776):1166-9. doi: 10.1016/0140-6736(91)92031-v.Lancet. 1991.PMID: 1682591