On the 'Circulation: Cardiovascular Quality and Outcomes' journal homepage, identify the journal's primary focus. Additionally, list the direct calls to action on this page that allow a user to support or get involved with the American Heart Association.
Navigate to circoutcomes.ahajournals.org. Locate the descriptive text that outlines the journal's primary focus or scope. Identify and list the prominent links or sections on the homepage that explicitly offer opportunities to support or get involved with the American Heart Association.
State that the journal's primary focus is: 'A catalyst for outstanding clinical and epidemiological science and policy information that enhances cardiovascular health and healthcare.' List 'Become a member', 'Volunteer', and 'Donate' as the direct calls to action for supporting or getting involved with the American Heart Association.