Q: Does a commentary always have to be critical or can it be constructive too? Thus highlighting the importance of the purpose of a published paper?

Thank you for your question. Commentaries provide a critical or alternative viewpoint on a key issue and can also provide insight into an important development that is of interest to scientists and readers; this article type draws attention to or presents criticism on a previous report. Considering that commentaries can be critical and constructive, it would be better to check the guidelines of the journal to which you hope to submit the commentary to, thereby confirming that the journal accepts critical and/or constructive commentaries.

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We wish you all the very best on your commentary!