deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 68a11a6..e201420 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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pages = {1009-21},  pubmed_id = {12742798},  }  @article{21483732,  title = {{Natural history of tuberculosis: duration and fatality of untreated pulmonary tuberculosis in HIV negative patients: a systematic review.}},  date = {2011 Apr 4},  source = {PLoS One},  authors = {Tiemersma, EW and van, der Werf MJ and Borgdorff, MW and Williams, BG and Nagelkerke, NJ},  author = {Tiemersma, EW and van, der Werf MJ and Borgdorff, MW and Williams, BG and Nagelkerke, NJ},  year = {2011},  month = {Apr},  journal = {PLoS One},  volume = {6},  number = {},  pages = {e17601},  pubmed_id = {21483732},  }