| Literature DB >> 4917340 |
J R Kirkpatrick, J H Lawrie, A P Forrest, H Campbell.
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Year: 1969 PMID: 4917340 PMCID: PMC1552966 DOI: 10.1136/gut.10.9.760
Source DB: PubMed Journal: Gut ISSN: 0017-5749 Impact factor: 23.059