WORLD CHINESE JOURNAL OF DIGESTOLOGY, Volume 14, Issue 23,2006, Pages 2261-2262, doi:10.3969/j.issn.1009-3079.2006.23.001
WORLD CHINESE JOURNAL OF DIGESTOLOGY, Volume 14, Issue 23,2006, Pages 2349-2353, doi:10.3969/j.issn.1009-3079.2006.23.019
WORLD CHINESE JOURNAL OF DIGESTOLOGY, Volume 14, Issue 23,2006, Pages 2361-2365,
WORLD CHINESE JOURNAL OF DIGESTOLOGY, Volume 14, Issue 23,2006, Pages 2294-2300, doi:10.3969/j.issn.1009-3079.2006.23.007