Linstead D.
Health Serv Manpow Rev. 1984 Nov;10(3):9-11.
PMID: 10270211

Miller MW, Beckham TW, Pathak DS.
J Allied Health. 1983 Feb;12(1):11-20.
PMID: 6841265

[No authors listed]
Health Serv J. 2009 Jun 11;4-5.
PMID: 19582921

[No authors listed]
Fed Regist. 1980 Jul 21;45(141):48623-6.
PMID: 10247437

Robinson TC.
J Dent Educ. 1993 Aug;57(8):616-8.
PMID: 8349888

Benton JG.
Bull N Y Acad Med. 1976 Nov;52(9):1144-7.
PMID: 1068733 Free PMC Article
Free PMC Article

Townsend C.
Health Serv J. 1986 Apr 10;96(4994):493.
PMID: 10276767