In order to be comprehensive, various sources were consulted, including the following databases: Latin American and Caribbean Health Sciences LILACS; Spanish Bibliographic Index on Health Sciences IBECS; BDENF Nursing Database; Cumulative Index to Nursing and Allied Health Literature CINAHL; and Medical Literature Analysis and Retrieval System Online MEDLINE; the Cochrane Library; the Scientific Electronic Library Online SciELO; and Google Scholar, in addition to lists of relevant literature references.
Para ser amplia, varias fuentes de bases de datos fueron consultadas: Literatura Latinoamericana y del Caribe en Ciencias de la Salud LILACS, Índice Bibliográfico Español de Ciencias de la Salud IBECS, Base de Dados de Enfermería BDENF, Cumulative Index to Nursing and Allied CINAHL y Medical Literature Analysis and Retrieval System Online MEDLINE, las bibliotecas Cochrane y Scientific Electronic Library Online SciELO y la herramienta Google Scholar, además de las listas de referencias de la literatura relevante.
Para ser abrangente, várias fontes foram consultadas, inclusive as bases Literatura Latino-Americana e do Caribe em Ciências da Saúde LILACS, Índice Bibliográfico Espanhol de Ciências da Saúde IBECS, Base de Dados de Enfermagem BDENF, Cumulative Index to Nursing and Allied CINAHL e Medical Literature Analysis and Retrieval System Online MEDLINE, as bibliotecas Cochrane e Scientific Electronic Library Online SciELO e a ferramenta Google Scholar, além das listas de referências da literatura relevante.