CDA (Canadian Dental Association):

http://www.cda-adc.ca/


ODA (Ontario Dental Association):

http://www.oda.on.ca/


ADA (American Dental Association):

http://www.ada.org/  


HEART & STROKE FOUNDATION:

http://www.heartandstroke.com/site/c.ikIQLcMWJtE/b.2796497/k.BF8B/Home.htm