1) Mandl P, Navarro-Compan V, Terslev L, et al: EULAR recommendations for the use of imaging in the diagnosis and management of spondyloarthritis in clinical practice, Ann Rheum Dis, 2015; 74: 1327-1339.
2) Gutierrez M, Filippucci E, De Angelis R, et al: A sonographic spectrum of psoriatic arthritis: "the five targets" , Clin Rheumatol, 2010; 29: 133-142.
3) Sieper J, Poddubnyy D, Miossec P: The IL-23-IL-17 pathway as a therapeutic target in axial spodyloarthritis, Nat Rev Rheumatol, 2019; 15: 747-757.