Ann Intern Med. 2003 Sep 2;139(5 Pt 1):352-8.
Update in gastroenterology.
Koretz RL.
Olive View-University of California, Los Angeles, Medical Center, Sylmar, California 91342, USA. rkoretz@dhs.co.la.ca.us
PMID: 12965944 [PubMed - indexed for MEDLINE]
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