10.1371/journal.pone.0071838.t004 Xingshun Qi Xingshun Qi Man Yang Man Yang Weirong Ren Weirong Ren Jia Jia Jia Jia Juan Wang Juan Wang Guohong Han Guohong Han Daiming Fan Daiming Fan Type I duplicates – difference between index and redundant papers. Public Library of Science 2013 Information technology databases statistics Biostatistics Statistical methods Clinical research design Qualitative studies Reporting guidelines Systematic reviews epidemiology Clinical epidemiology Survey methods Non-clinical medicine Evidence-based medicine Medical education information science Information storage and retrieval duplicates redundant 2013-08-20 01:40:44 Dataset https://plos.figshare.com/articles/dataset/_Type_I_duplicates_8211_difference_between_index_and_redundant_papers_/777041 <p>Notes: Type I duplicates represent duplicates among databases.</p>