@article{19022,
  author = {Sibbritt D. and Li M. and Dibley M. and Zhou X. and Yan H.},
  title = {Physical activity and sedentary behaviour in adolescents in Xi’an City, China},
  year = {2007},
  journal = {Journal of Adolescent Health},
  volume = {41},
  number = {1},
  pages = {99-101.},
  language = {eng},
}