@article{RitchlinKavanaughGladmanetal.2008,
  author    = {Christopher T. Ritchlin and Arthur Kavanaugh and Dafna D. Gladman and Philip J. Mease and Philip Helliwell and Wolf-Henning Boehncke and Kurt de Vlam and David Fiorentino and Oliver FitzGerald and Alice B. Gottlieb and Neil J. McHugh and Peter Nash and Abrar A. Qureshi and Enrique R. Soriano and William J. Taylor},
  title     = {Treatment recommendations for psoriatic arthritis},
  journal   = {Annals of the Rheumatic Diseases},
  volume    = {68},
  pages     = {1387 -- 1394},
  doi       = {10.1136/ard.2008.094946},
  year      = {2008},
}