"We examined the publication records of a cohort of 168 life scientists in the field of ecology and evolutionary biology to assess gender differences in research performance. Clear discrepancies in publication rate between men and women appear very early in their careers and this has consequences for the subsequent citation of their work. ..."

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Symonds MR, Gemmell NJ, Braisher TL, Gorringe KL, Elgar MA. 2006. Gender Differences in Publication Output: Towards an Unbiased Metric of Research Performance. PLoS ONE 1(1): e127. doi:10.1371/journal.pone.0000127