DGK-Homepage - http://dgk.org/

The online collaborative tool, for sub-specialties of cardiology, to deliver their curricula

ESC-Homepage - http://www.escardio.org/

AG38 @ LinkedIn - http://www.linkedin.com/groups?gid=3899581


ESC COT @ LinkedIn - http://www.linkedin.com/groups?home=&gid=3179816


American Heart Association - http://www.heart.org/HEARTORG

Homepage European heart rhythm association (EHRA) - 

http://www.escardio.org/communities/EHRA/Pages/membership.aspx