M. P. Caskey, M. S. Kirshner, E. L. Alderman, S. L. Hunsley, and M. A. Daniel, “Six-Month Angiographic Evaluation of Beating-Heart Coronary Arterial Graft Interrupted Anastomoses Using the Coalescent U-CLIP Anastomotic Device: A Prospective Clinical Study”, HSF, vol. 5, no. 4, pp. E319-E327, Dec. 2002.