J Adv Nurs. 1999 Nov;30(5):1239-41. doi: 10.1046/j.1365-2648.1999.1222a.x.
Journal of advanced nursing
[No authors listed]
PMID: 10564424 DOI: 10.1046/j.1365-2648.1999.1222a.x
[No abstract available.]