@article{d150957fe5b94385aa14b9747e2e7ac2,
title = "GRAPPA-OMERACT initiative to standardise outcomes in psoriatic arthritis clinical trials and longitudinal observational studies",
keywords = "disease activity, psoriatic arthritis, treatment",
author = "William Tillett and Orbai, {Ana Maria} and Alexis Ogdie and Leung, {Ying Ying} and Vibeke Strand and Gladman, {Dafna D.} and Mease, {Philip J.} and Coates, {Laura C.}",
note = "Copyright: Copyright 2019 Elsevier B.V., All rights reserved.",
year = "2018",
month = may,
day = "1",
doi = "10.1136/annrheumdis-2017-212004",
language = "English (US)",
volume = "77",
journal = "Annals of the Rheumatic Diseases",
issn = "0003-4967",
publisher = "BMJ Publishing Group",
number = "5",
}