| Literature DB >> 11923780 |
David A Watts1, Alastair M Lessells, Ian D Penman, Subrata Ghosh.
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Year: 2002 PMID: 11923780 DOI: 10.1067/mge.2002.122582
Source DB: PubMed Journal: Gastrointest Endosc ISSN: 0016-5107 Impact factor: 9.427