Original Article
Copyright ©2012 Baishideng Publishing Group Co.
World J Gastroenterol. Jun 21, 2012; 18(23): 2948-2955
Published online Jun 21, 2012. doi: 10.3748/wjg.v18.i23.2948
Table 1 Documented cases collected from the international literature
Country/regionNo. of casesNo. of articles
Eastern Asia
Japan4036[6-10]1
China266[4,5,11-14]
Korea81[15]
Singapore31[16]
Middle East and Europe
Israel33[17-19]
Italy22[20,21]
Spain22[22,23]
Portugal11[24]
France11[25]
United Kingdom11[26]
North and Central America
United States77[2,27-32]
Canada11[33]
Netherlands Antilles11[34]
Total9663