Identification of clinical phenotypes of peripheral involvement in patients with spondyloarthritis, including psoriatic arthritis: a cluster analysis in the worldwide ASAS-PerSpA study

López-Medina, C. ✉; Chevret, S.; Molto, A.; Sieper, J.; Duruöz, T.; Kiltz, U.; Elzorkany, B.; Hajjaj-Hassouni, N.; Burgos-Vargas, R.; Maldonado-Cocco, J.; Ziade, N.; Gavali, M.; Navarro-Compan, V.; Luo, S.-F.; Biglia, A.; Tae-Jong, K.; Kishimoto, M.; Pimentel-Santos, F.M.; Gu, J.; Muntean, L.; Van, Gaalen F.A.; Geher, P. [Géher, Pál (Reumatológia), author] Department of Rheumatology and Clinical Immunology (SU / FM / C / DIMO); Magrey, M.; Ibáñez-Vodnizza, S.E.; Bautista-Molano, W.; Maksymowych, W.; MacHado, P.M.; Landewé, R.; Van, Der Heijde D.; Dougados, M.