deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 2f3d5da..a85196e 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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pages = {575-84},  pubmed_id = {11353107},  }  @article{11956924,  title = {{Sacral extradural arachnoid cyst: a rare cause of low back and perineal pain.}},  date = {2002 Apr},  source = {Eur Spine J},  authors = {Muthukumar, N},  author = {Muthukumar, N},  year = {},  month = {},  journal = {Eur Spine J},  volume = {11},  number = {},  pages = {162-6},  pubmed_id = {11956924},  }