Dilşad SİNDEL et al. 2018. Prevalence of Rheumatoid Arthritis and Spondyloarthritis in Turkey: A Nationwide Study. Archives of Rheumatology. 33, 2 (Jun. 2018), 128–136. DOI:https://doi.org/10.5606/ArchRheumatol.2018.6480.