After excluding duplicates, non-English journals, and articles that did not directly cite Wikipedia, we retrieved full text for 1433 articles from 1008 indexed journals, with 2049 Wikipedia citations. In total, 2011 impact factors were available for 1420 citations in 980 articles from 650 indexed journals and were found in the JCR database.
Using the descriptive coding strategy, we found a wide variety of uses for Wikipedia citations in the literature, the most common being definitions and descriptive statements.
Bould, M. D., E. S. Hladkowicz, A.-A. E. Pigford, L.-A. Ufholz, T. Postonogova, E. Shin, and S. Boet. 2014. “References That Anyone Can Edit: Review of Wikipedia Citations in Peer Reviewed Health Science Literature.” BMJ 348 (March 2014): epub ahead of print. doi:10.1136/bmj.g1585.