◆ International Forum of Colorectal Surgery NanJing China ◆ The Annual Meeting of The American Society of Colon & Rectal Surgeons ◆ European Association of Coloproctology 4th Scientific and Annual Meeting ◆ The 2005 Tripartite Colorectal Meeting ◆ Annual meeting 2003 of The Association of Coloproctology of Great Bratain and Ireland       ◆ The 12th Large Intestine and Anal Disease Academic Conference of Traditional Chinese Medicine Association of China&The 11th International Conference of Large Intestine and Anal Disease Academic Communication between China and Japan. ◆ 2006 National Conference of New Technique of Basic and Clinical Research of Constipation ◆ The 9th National Combination of TCM and Western Medicine Meeting of Coloproctology ◆ Coloproctological Meeting of Hubei and the Western ◆ Constipation Symposium of China Medical Association