Marukawa K.
Kango Tenbo. 1977 Feb;2(2):27-30.
PMID: 242630

Morley JM.
Nurs Mirror. 1978 May 04;146(18):20-1.
PMID: 349518

Kaiser J.
Am J Nurs. 1976 Apr;76(4):638.
PMID: 775986

Bennett C.
Nurs Times. 2001 Jan 11-17;97(2):35.
PMID: 11954106

Kinross NJ.
N Z Nurs J. 1973 Apr;66(4):26-7.
PMID: 4513134

Southwick M.
Nurs Prax N Z. 1994 Jul;9(2):4-10.
PMID: 7849482

Allen FM.
Can J Nurs Res. 1999 Mar;30(4):35-45.
PMID: 10603775