Effects of ustekinumab on spondylitis-associated endpoints in TNFi-naïve active psoriatic arthritis patients with physician-reported spondylitis: pooled results from two phase 3, randomised, controlled trials
Philip S Helliwell, Dafna D Gladman, Soumya D Chakravarty, Shelly Kafka, Chetan S Karyekar, Yin You, Kim Campbell, Kristen Sweet, Arthur Kavanaugh, Lianne S Gensler
RMD Open Feb 2020, 6 (1) e001149; DOI: 10.1136/rmdopen-2019-001149