| Literature DB >> 2311883 |
C B Williams1, J Baillie, D F Gillies, D Borislow, P B Cotton.
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Year: 1990 PMID: 2311883 DOI: 10.1016/s0016-5107(90)70923-6
Source DB: PubMed Journal: Gastrointest Endosc ISSN: 0016-5107 Impact factor: 9.427