deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 3902b9e..59aa7a6 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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pages = {1854-7},  pubmed_id = {7569924},  }  @article{11937286,  title = {{Acoustic radiation force impulse imaging: in vivo demonstration of clinical feasibility.}},  date = {2002 Feb},  source = {Ultrasound Med Biol},  authors = {Nightingale, K and Soo, MS and Nightingale, R and Trahey, G},  author = {Nightingale, K and Soo, MS and Nightingale, R and Trahey, G},  year = {2002},  month = {Feb},  journal = {Ultrasound Med Biol},  volume = {28},  number = {},  pages = {227-35},  pubmed_id = {11937286},  }