Efficacy of tofacitinib in reduction of inflammation detected on MRI in patients with Psoriatic ArthritiS presenTing with axial involvement (PASTOR): protocol of a randomised, double-blind, placebo-controlled, multicentre trial (2021)
https://pubmed.ncbi.nlm.nih.gov/34785545/

Sustained clinical response and safety of etanercept in patients with early axial spondyloarthritis: 10-year results of the ESTHER trial (2021)
https://pubmed.ncbi.nlm.nih.gov/33796155/

Diagnosing axial spondyloarthritis: estimation of the disease probability in patients with a priori different likelihoods of the diagnosis (2021)
https://pubmed.ncbi.nlm.nih.gov/33693503/