Annual Meeting ＜19th Meeting＞ 2008, December 11-12 Tokyo Chairperson; Dr. SAKAMAKI　　 Call for Abstracts: http://jpoa2008.umin.jp/en_index.htm Deadline: Wednesday, 27 August, 2008 ＜20th Meeting＞ 2009 Chairperson; Dr. YAMAMOTO