| Literature DB >> 872709 |
R Downing, A R McLeish, D W Burdon, J Alexander-Williams, M R Keighley.
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Year: 1977 PMID: 872709 DOI: 10.1007/bf02587371
Source DB: PubMed Journal: Dis Colon Rectum ISSN: 0012-3706 Impact factor: 4.585