Data Statement
Scientific results are only as strong as they are reproducible, so the ability to identify and access the data behind a study is vital to building on it. JMMC encourages, but does not require, authors to make the data underlying their published findings available.

Authors are asked to include a data availability statement with every submission, describing whether and how the data supporting their findings can be accessed. This statement is published alongside the article, under the "Research Data" heading.

 

Benefits for authors and readers

• Increases transparency and verifiability
• Supports compliance with funder and institutional data policies
• Encourages good scientific practice and strengthens trust in published findings
• Allows other researchers to build on and cite the underlying dataset directly, avoiding unnecessary duplication of effort

Data sharing should always remain consistent with participant privacy, the terms of ethical approval, and any third-party data rights. Where data cannot be shared for these or other reasons, authors should state the specific reason rather than leaving the statement blank.

 

Example statements
Authors may adapt one of the following, depending on their actual circumstances:

• "The data supporting the findings of this study are available from the corresponding author upon reasonable request."
• "The data supporting the findings of this study are included within the article and its supplementary materials."
• "The data supporting the findings of this study are openly available in [repository name] at [DOI/URL]."
• "Data sharing is not applicable to this article, as no datasets were generated or analyzed during the current study." (appropriate for case reports, reviews, and similar article types)
• "The data are not publicly available due to [specific reason, e.g., patient privacy / third-party ownership / ongoing analysis]."

Authors intending to deposit data are encouraged to use a recognized repository appropriate to their field, so the dataset receives a stable, citable identifier independent of the article itself.