The following databases were searched: CINAHL, Embase, SCOPUS, Medline and the National Library of Medicine in PubMed.
Para buscar los artículos fueron utilizadas las bases de datos CINAHL, Embase, SCOPUS, Medline y el servicio de investigación de la National Library of Medicine en las bases de datos PubMed.
Para a busca dos artigos foram utilizadas as bases de dados CINAHL, Embase, Scopus, MEDLINE e o serviço de pesquisa da National Library of Medicine nas bases de dados PubMed.