Carlson GA.
Fla Nurse. 1989 Sep;37(8):6, 13.
PMID: 2776914

Smoyak SA.
Miss RN. 1969 Apr;31(2):22-8.
PMID: 5191995

Yano S.
Kangogaku Zasshi. 1977 Jun;41(6):560-3.
PMID: 406444

Henriksen K.
Tidsskr Sykepl. 1997 Nov 25;85(20):32-3.
PMID: 9431149

Flaherty MJ.
Nurs Manage. 1983 Jul;14(7):50-1.
PMID: 6553800

Iorio L.
Todays Surg Nurse. 1999 May-Jun;21(3):44-6.
PMID: 10808963

Iorio L.
Todays Surg Nurse. 1999 Mar-Apr;21(2):48-50.
PMID: 10232291