• References

    Double aortic arch. Johns Hopkins University, Cove Point Foundation website. Available at: Updated May 16, 2011. Accessed July 19, 2013.

    Vascular ring. Children’s Hospital Boston website. Available at: Accessed July 19, 2013.

  • Resources

    American Academy of Pediatrics

    American Heart Association

  • Canadian Resources

    Canadian Cardiovascular Society

    Heart and Stroke Foundation of Canada