To search for articles, we used the data bases Medical Literature Analysis and Retrieval System MEDLINE, Latin American and Caribbean Center on Health Sciences LILACS, Cumulative Index to Nursing and Allied Health Literature CINAHL and Cochrane Library, with Internet access.
Para la búsqueda de los artículos, fueron utilizadas las bases de datos Medical Literature Analysis and Retrieval System MEDLINE, Literatura Latinoamericana y Caribeña en Ciencias de la Salud LILACS, Cumulative Index to Nursing and Allied Health Literature CINAHL, y Biblioteca Cochrane, con acceso vía Internet.
Para a busca dos artigos, foram utilizadas as bases de dados Medical Literature Analysis and Retrieval System MEDLINE, Literatura Latino-Americana e do Caribe em Ciências da Saúde LILACS, Cumulative Index to Nursing and Allied Health Literature CINAHL e Biblioteca Cochrane, com acesso via internet.