Buy this Article for $5.95

Have a coupon or promotional code? Enter it here:

When you buy this you'll get access to the ePub version, a downloadable PDF, and the ability to print the full article.


  1. Gonzalez, Raquel Luengo MSc, RN


Evidence is insufficient to recommend its use.


Editor's note: This is the fifth in a series of summaries of nursing care-related systematic reviews from the Cochrane Library.