1. Kim DI, Kim JJ, Yang EB, Kim SW, Lee SK, Chung HS, Oh ST, Eun BL, Cha BS. A study on the current status and future direction of medical sub-specialty training system in Korea. Seoul: Korean Academy of Medical Sciences; 2014.
2. Council on Graduate Medical Education. Third report. Improving access to health care through physician workforce reform: directions for the 21st century. Rockville: US Department of Health and Human Services; 1992.
3. Korean Academy of Medical Sciences. Survey on the current status of sub-specialty program. Seoul: Korean Academy of Medical Sciences; 2000.
5. Wax PM, Donovan JW. Fellowship training in medical toxicology: characteristics, perceptions, and career impact. J Toxicol Clin Toxicol 2000;38:637-642.
6. Rinder HM, Wagner J. ASCP fellowship & job market survey. Chicago: American Society for Clinical Pathology; 2012.
8. Rosenberg ME. Adult nephrology fellowship training in the United States: trends and issues. J Am Soc Nephrol 2007;18:1027-1033.
9. Whitcomb ME, Walter DL. Research training in six selected internal medicine fellowship programs. Ann Intern Med 2000;133:800-807.
10. Kim SW, Kwon WI, Kang MJ. Study for settlement of sub-specialty training program in South Korea. Seoul: Korean Academy of Medical Sciences; 2013.
11. In: Shin JY, editor. A study on activating of sub-specialty training program Proceedings of the 65th the Korean Academy of Family Medicine Conference. 2013 April 4-7. Daegu, Korea: Daegu: Inter-Burgo. 2013.
12. Shin YS, Lee SH, Shin IS. Evaluation and policy recommendation of the accreditation program for medical subspecialty board certification. Seoul: Research Institute for Healthcare Policy; 2011.
13. Tyler RW. Basic principles of curriculum and instruction. Chicago: University of Chicago Press; 1949.
14. Gruppen LD, Simpson D, Searle N, Robins L, Irby DM, Mullan PB. Educational fellowship programs: common themes and overarching issues. Acad Med 2006;81:990-994.
15. Langdon LO, Toskes PP, Kimball HR. Future roles and training of internal medicine subspecialists: American Board of Internal Medicine Task force on Subspecialty Internal Medicine. Ann Intern Med 1996;124:686-691.
17. Prashker MJ, Meenan RF. Subspecialty training: is it financially worthwhile? Ann Intern Med 1991;115:715-719.