Ottgen C.
Wash Nurse. 1991 Jul-Aug;21(6):10-1.
PMID: 1767525

Axelsen I.
Sygeplejersken. 1976 Mar 31;76(13):9.
PMID: 1046302

D'Antonio P, Lewenson SB.
Nurs Educ Perspect. 2019 Mar/Apr;40(2):129. doi: 10.1097/01.NEP.0000000000000481.
PMID: 30789564

Haugh RM.
Mo Med. 2013 Jan-Feb;110(1):54.
PMID: 30323469

Bolger T.
Nurs Times. 1989 May 24-30;85(21):25.
PMID: 2734175

[No authors listed]
Nurs Stand. 1990 Sep 26-Oct 2;5(1):23.
PMID: 2119771

[No authors listed]
J Natl Med Assoc. 1954 Mar;46(2):140.
PMID: 20893695