@misc{9500,
  author = {A. Walker and M. Grainge and T. Card},
  title = {Aspirin and other non-steroidal anti-inflammatory drug use and colorectal cancer survival: a cohort study},
  year = {2012},
  journal = {Br J Cancer},
  volume = {107},
  number = {9},
  pages = {1602-7},
  issn = {0007-0920},
  doi = {10.1038/bjc.2012.427},
}