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. 2023 Feb 2;4(2):119–124. doi: 10.1093/ehjdh/ztad008

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© The Author(s) 2023. Published by Oxford University Press on behalf of the European Society of Cardiology.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (https://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

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Visualization of characteristic words by WordCloud. Words which have higher number of occurrences are displayed in a large letter. (A) Shows frequently observed words in abstracts from type A studies. (B) Shows those from type B studies.