- Leon LR Jr, Villar H, Leon CR, et al. The journey of a foreign-trained physician to a United States residency. J Am Coll Surg. 2007 Mar;204(3):486-494.
- Hart LG, Skillman SM, Fordyce M, et al. International medical graduate physicians in the United States: changes since 1981. Health Aff. 2007 Jul/Aug;26(4):1159-1169.