The raw data are provided as a comma separated values (CSV) file. Columns 1, 2, and 4 contain identifiers. Column 3 indicates if this is the first occurence of this paper (1) or if the paper occurs again (2, 3, 4, ...) with a new recommendation. Columns 5 and 6 contain the PubmedID and DOI. Column 7 contains the total number of Mendeley readers of this paper. Columns 8 to 32 contain the number of Mendeley readers in the disciplines, while column 33 contains the sum of readers over all disciplines. Note that the value in column 33 and 7 is not equal for all papers, because the discipline is a voluntary piece of information