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Correspondence
GRAPPA-OMERACT initiative to standardise outcomes in psoriatic arthritis clinical trials and longitudinal observational studies

Authors

  1. Correspondence to Dr William Tillett, Royal National Hospital for Rheumatic Disease, University of Bath, BA11RL, Bath, UK; w.tillett{at}nhs.net
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Citation

Tillett W, Orbai A, Ogdie A On Behalf of the GRAPPA OMERACT Psoriatic Arthritis working group, et al
GRAPPA-OMERACT initiative to standardise outcomes in psoriatic arthritis clinical trials and longitudinal observational studies
Annals of the Rheumatic Diseases 2018;77:e23.

Publication history

  • Received June 30, 2017
  • Accepted June 30, 2017
  • First published July 26, 2017.
Online issue publication 
April 12, 2018

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