Mapping Half a Century of Global Brain Abscess Research (1975–2025): screening rubric, dual-screen log, analysis code and archived dataset

Supporting materials for a bibliometric analysis of global brain-abscess research (9,097 journal articles, 1975–2025, OpenAlex). Includes the relevance-screening rubric frozen before screening, the complete per-record screening log for both independent reviewers, the consensus decisions and their recorded basis, the inter-rater agreement and analysis scripts in R, the annual world-output denominator used for the share analysis, and the archived dataset from which all reported metrics were regenerated.