The scientific merit of the journal is the main factor for its indexation in LILACS. The content of the journal must consistently reflect its mission, scope, and vision of the future, outlined by the editorial board.

The publication of original articles is a condition for the selection of a journal for the collection and should represent at least 50% of the articles published in the issue. Original articles are those that present scientific research results based on original data from experimental or observational findings. Systematic literature reviews (meta-analysis, meta-synthesis, scoping review, mapping review, overview, systematic review, integrative review) will be computed as original articles. Other types of contributions present in journals are case studies, theoretical reflections, and experience reports.

In journals that publish exclusively case studies or case series, the originality criteria will be disregarded. However, the relevance and pertinence of the reported cases will be evaluated.

In the evaluation and selection process, only peer-reviewed documents will be analyzed.

The following will not be considered:

• Newsletters or publications addressed to organizational and informative topics;
• Commercial journals;
• Journals exclusively for scientific dissemination;
• Journals that predominantly publish translated articles or those published in other journals.