McInerney K.
NLN Publ. 1976;(23):94-9.
PMID: 1045196

Ferguson V.
Nurs Clin North Am. 1990 Sep;25(3):615-6.
PMID: 2381864

Hawkins K.
Nurs Mirror. 1979 Nov 22;149(21):10.
PMID: 260156

[No authors listed]
Tex Nurs. 1989 Jan;63(1):17, 19, 21.
PMID: 2911808

Shambaugh GE.
Arch Otolaryngol. 1967 Feb;85(2):123-4. doi: 10.1001/archotol.1967.00760040125001.
PMID: 6017583

Lavizzo-Mourey R.
Workplace Health Saf. 2012 Mar;60(3):95-6.
PMID: 22666889

Diers D.
Am J Nurs. 2012 Jan;112(1):11. doi: 10.1097/01.NAJ.0000410343.88286.0e.
PMID: 22222386