@article{Pérez-Aranda:99062,
      author        = "Pérez-Aranda, A. and Feliu-Soler, A. and Mist, S.D. and
                       Jones, K.D. and López del Hoyo, Y. and Oliván-Arévalo,
                       R. and Kratz, A. and Williams, D.A. and Luciano, J.V.",
      title         = "{Subgrouping a large U.S. sample of patients with
                       fibromyalgia using the fibromyalgia impact
                       questionnaire-revised}",
      year          = "2021",
}