1. 
   Yamaguchi-gumi
   (from the article `Taoka Kazuo`) Japan`s major crime boss (oyabun), who, after World War II, rose to head a giant crime organization, the Yamaguchi-gumi. Though centred in Kbe, it ...
   Found op http://www.britannica.com/eb/a-z/y/2
   
   
2. 
   Yamaguchi-gumi
   It is one of the largest criminal organizations in the world. Estimates put the number of active members at just over 55,000, with thousands more having strong associations. It is, by far, the largest of the boryokudan groups, and its membership encompasses roughly 45% of the 86,300 yakuza in the J...
   Found op http://en.wikipedia.org/wiki/Yamaguchi-gumi
   
   

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