[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

Richardson GE, Wilson SS, Sheehy CD, Young N.
J Allied Health. 1984 Feb;13(1):38-47.
PMID: 6715242

Ito J.
Kango Tenbo. 1982 Sep;7(9):839-43.
PMID: 6923110

Ito J.
Kango Tenbo. 1982 Jul;7(7):660-4.
PMID: 6922332

Miller TW, Gallicchio VS.
J Allied Health. 2007;36(4):236-40.
PMID: 18293806