Margolis H, Fiorelli JS, Leonard HS.
Rehabil Nurs. 1984 May-Jun;9(3):38-40. doi: 10.1002/j.2048-7940.1984.tb02419.x.
PMID: 6563644

Thistlethwaite JE.
J Clin Nurs. 2008 Feb;17(4):425-6. doi: 10.1111/j.1365-2702.2007.02161.x.
PMID: 18205676

Arndt K, Teterycz P, Valentin L.
Superv Nurse. 1978 Feb;9(2):18-9.
PMID: 245124

McKillip JB.
Phys Ther. 1970 Mar;50(3):421-5. doi: 10.1093/ptj/50.3.421.
PMID: 5442389

Ponzer S, Faresjö T, Mogensen E.
Lakartidningen. 2009 Mar 25-31;106(13):929-31.
PMID: 19441192