🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoPolskiPortuguêsSvenskaTürkçeРусскийالعربيةفارسی한국어中文日本語EntityQ1148359· pop 27· linked from 194 articlesgrey literaturematerials produced by organizations outside of traditional channelsResearch26,032 papersGray literature: An important resource in systematic reviews.Journal of evidence-based medicine · 2017Automated data analysis of unstructured grey literature in health research: A mapping review.Research synthesis methods · 2024Grey literature citations in top nursing journals: a bibliometric study.Journal of the Medical Library Association : JMLA · 2020A scoping review of academic and grey literature on migrant health research conducted in Scotland.BMC public health · 2024Insect wood borers on commercial North American tree species growing in China: review of Chinese peer-review and grey literature.Environmental entomology · 2023via PubMedConnectionsdigital object identifierEntitypatentEntityCategoriesGrey literaturePublishingTechnical communication