CHINESE JOURNAL OF PRACTICAL NURSING, Volume 22, Issue 25,2006, Pages 77, doi:10.3760/cma.j.issn.1672-7088.2006.25.050
SHANDONG MEDICAL JOURNAL, Volume 46, Issue 25,2006, Pages 19-21, doi:10.3969/j.issn.1002-266X.2006.25.008
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 12, Issue 25,2006, Pages 4098-4100,
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