deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index a4be413..bea3782 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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title = {{The Existence of Publication Bias and Risk Factors for Its Occurrence}},  journal = {{JAMA}},  }  @article{Schroll_2013,  doi = {10.1136/bmj.f2231},  url = {http://dx.doi.org/10.1136/bmj.f2231},  year = {2013},  month = {apr},  publisher = {{BMJ}},  volume = {346},  number = {apr23 1},  pages = {f2231--f2231},  author = {J. B. Schroll and L. Bero and P. C. Gotzsche},  title = {{Searching for unpublished data for Cochrane reviews: cross sectional study}},  journal = {{BMJ}},  }