• International Colorectal Disease symposium 2007 - www.icds-hk.com

• Hong Kong Society of Minimal Access Surgery - www.hksmas.org

• The Hong kong Society of Gastroenterology - www.hksge.org

• Cleveland Clinic - www.clevelandclinic.org

• St Mark’s Hospital - www.stmarkshospital.org.uk

• Association of Coloproctology of Great Britain and Ireland - www.acpgbi.org.uk

• European Society of Coloproctology - www.escp.eu.com