This article has been retracted at the request of the Editor-in-Chief.
The authors have plagiarized part of a paper that had already appeared in Enferm Clin. 2015;25(1):3-8. DOI:10.1016/j.enfcli.2014.10.004. One of the conditions of submission of a paper for publication is that authors declare explicitly that their work is original and has not appeared in a publication elsewhere. Re-use of any data should be appropriately cited. As such this article represents a severe abuse of the scientific publishing system. The scientific community takes a very strong view on this matter and apologies are offered to readers of the journal that this was not detected during the submission process.
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