English JT.
Am J Psychiatry. 1992 Sep;149(9):1142-4. doi: 10.1176/ajp.149.9.1142.
PMID: 1503125

Novello DJ.
Nurs Outlook. 1977 Apr;25(4):243.
PMID: 584986

Tamboli VF.
Health Care Manage Rev. 1991;16(4):9-10.
PMID: 1743967

McHardy K, McCann L.
Intern Med J. 2015 Nov;45(11):1099-101. doi: 10.1111/imj.12901.
PMID: 26563690

Billingsley M.
Nursingconnections. 1993;6(1):13-4.
PMID: 8487870

Roudabush RL, Becker ER.
Science. 1934 Jul 27;80(2065):97. doi: 10.1126/science.80.2065.97-a.
PMID: 17743168

[No authors listed]
Mod Healthc. 2006 Aug 07;32, 34, 36 passim.
PMID: 16958355