| Literature DB >> 5572896 |
J Engström, K Hellström, L Högman, B Lönnqvist.
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Year: 1971 PMID: 5572896 DOI: 10.3109/00365527109180689
Source DB: PubMed Journal: Scand J Gastroenterol ISSN: 0036-5521 Impact factor: 2.423