The active search for publications was carried out in July 2015 in the following databases: Scopus www.scopus.com, Web of Science www. isiknowledge.com and CINAHL http://search.ebscohost.com.
La búsqueda activa de publicaciones se efectuó en julio del 2015 en las siguientes bases de datos: Scopus www.scopus.com, Web of Science www. isiknowledge.com y CINAHL http://search.ebscohost.com.
A busca ativa de publicações foi realizada em julho de 2015 nas seguintes bases de dados: Scopus www.scopus.com, Web of Science www. isiknowledge.com e CINAHL http://search.ebscohost.com.