[A new stage, a new image and a challenge...].

@article{Lpez1994ANS,
  title={[A new stage, a new image and a challenge...].},
  author={Eduardo R Mar{\'i}n L{\'o}pez and Lorenzo de la Garza Villase{\~n}or},
  journal={Revista de gastroenterologia de Mexico},
  year={1994},
  volume={59 1},
  pages={12}
}