@article{18214,
  author = {Roberts C. and Peat B. and Algert C. and Carnegie M.},
  title = {Operative delivery during labour: trends and predictive factors},
  year = {2002},
  journal = {Paediatric and Perinatal Epidemiology},
  volume = {16},
  pages = {115-23},
  language = {eng},
}