Hitchen JM, Brown RA.
Nurse Educ Today. 1988 Dec;8(6):341-6. doi: 10.1016/0260-6917(88)90075-5.
PMID: 3216850

Balogh R, Beattie A.
Nurs Times. 1991 Nov 20-26;87(47):44-7.
PMID: 1754434

Northcott N.
Nurs Stand. 1989 Mar 04;3(23):26-8. doi: 10.7748/ns.3.23.26.s43.
PMID: 2495474

Winterman E, Sharp K, McNamara G, Hughes T, Brown J.
Nurs Times. 2014 Dec 17-2015 Jan 13;110(51):21-3.
PMID: 26012069

Nowell L, Norris JM, Mrklas K, White DE.
J Adv Nurs. 2017 Mar;73(3):527-544. doi: 10.1111/jan.13152. Epub 2016 Oct 17.
PMID: 27650412

[No authors listed]
Kango. 1994 Sep;46(11):162-7.
PMID: 8699696

[No authors listed]
Kango. 1994 Aug;46(10):159-68.
PMID: 8699679