@article{18009,
  author = {Walker N. and S. Hoorn Vander and Clark T. and Gray H. and Rodgers A and Norton R and Macmahon S},
  title = {Mortality after hip fracture: regional variations in New Zealand},
  year = {1999},
  journal = {NZ Med J},
  volume = {112},
  pages = {269-71},
  language = {eng},
}