Butts, R. J., Crean, A. M., Hlavacek, A. M., Spicer, D. E., Cook, A. C., Oechslin, E. N., & Anderson, R. H. (2011). Veno-venous bridges: The forerunners of the sinus venosus defect.

Butts, Ryan J., Andrew M. Crean, Anthony M. Hlavacek, Diane E. Spicer, Andrew C. Cook, Erwin N. Oechslin, and Robert H. Anderson. Veno-venous Bridges: The Forerunners of the Sinus Venosus Defect. 2011.

Butts, Ryan J., et al. Veno-venous Bridges: The Forerunners of the Sinus Venosus Defect. 2011.