| Literature DB >> 4452464 |
R B Ruskin, M D Fischer, J R Sandilands, L R Eidemiller, R M Katon.
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Year: 1974 PMID： 4452464 DOI： 10.1016/s0016-5107(74)73800-7
Source DB: PubMed Journal: Gastrointest Endosc ISSN： 0016-5107 Impact factor: 9.427