• Resources

    American Heart Association

    Children's Heart Institute

  • Resources

    American Heart Association website. Available at:

    Patent ductus arteriosus. In:
    The Heart Center Encyclopedia.
    Children's Hospital Heart Center at the Cincinnati Children's Hospital
    Medical Center website. Available at: Accessed December 2002.

    Understanding congenital heart defects. Mayo Adult Congenital Heart Disease
    Clinic, Mayo Foundation for Medical Education and Research website. Available at: Accessed October 2002.

  • Canadian Resources

    Canadian Cardiovascular Society

    Canadian Family Physician