Letter discusses methodological issues in bibliometric analysis of brachial plexus injury research, impacting validity.
Wei et al. published in 2024 a bibliometric analysis of research on brachial plexus injury covering the period from 1980 to 2022, in Heliyon [1]. Although the topic is of substantial clinical and academic importance, several methodological issues related to data retrieval, search strategy design, and bibliometric data processing require clarification, as they materially affect the validity, completeness, and reproducibility of the reported results.
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Ho et al. (2026) studied this question.
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