Wilmore DW.
Surgery. 1983 Aug;94(2):121-5.
PMID: 6879433

Epps AC, Pisano JC.
J Med Educ. 1984 May;59(5):439-40. doi: 10.1097/00001888-198405000-00015.
PMID: 6716438

Badyal DK, Singh T.
Natl Med J India. 2015 May-Jun;28(3):137-40.
PMID: 26724345

Weissman SH.
Acad Med. 2000 Feb;75(2):103. doi: 10.1097/00001888-200002000-00001.
PMID: 10693837

Hadley J.
J Health Econ. 1983 Mar;2(1):75-9. doi: 10.1016/0167-6296(83)90013-9.
PMID: 10263962

Hume SK.
Health Prog. 1986 Nov;67(9):22-4.
PMID: 10279350

Haneman B.
Med J Aust. 1980 Sep 06;2(5):237-8. doi: 10.5694/j.1326-5377.1980.tb131839.x.
PMID: 7432306