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\begin{table}  \caption \textbf{Table {\textbf{Table  1. } Overview of data collected for a cohort of 4,606 articles submitted to the preprint database arXiv between October 4, 2010 and May 2, 2011.} \begin{tabular}{llll}  & N & articles & time period   arXiv downloads & 2,904,816 & 4,606 & October 4, 2010 to May 9, 2011