@article{Perez-Palomares:131241,
      author        = "Perez-Palomares, S. and Olivan-Blazquez, B. and
                       Magallon-Botaya, R. and De-La-Torre-Beldarrain, M. M. L.
                       and Gaspar-Calvo, E. and Romo-Calvo, L. and Garcia-Lazaro,
                       R. and Serrano-Aparicio, B.",
      title         = "{Percutaneous electrical nerve stimulation versus dry
                       needling: Effectiveness in the treatment of chronic low
                       back pain}",
      year          = "2010",
}