10/1/2011, I posted this article and reported Nishioka ,House of Councillors President suffered from severe canker sore.
Today he died.(11/5/2011 AM 2:24)
He was 75 years old.
He has been absent from extraordinary Diet session since 10/20/2011.
Though it was supposed to be because of the severe canker sore,
he died of pneumonia.
However, even the announcement is not trustworthy.
(Source)