(doi-utils-get-pdf-url "10.1126/science.1158722")
#+END_SRC
#+RESULTS:
: http://www.sciencemag.org/content/321/5890/792.full.pdf
(doi-utils-get-pdf-url "10.1126/science.1158722")
#+END_SRC
#+RESULTS:
: http://www.sciencemag.org/content/321/5890/792.full.pdf