Concerns about the prevalence of primary Sjögren's syndrome: comment on the article by Theander et al.
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D000328:Adult; D017677:Age Distribution; D003165:Complement System Proteins / Q000378:metabolism; D005060:Europe / Q000453:epidemiology; D006801:Humans; D008232:Lymphoproliferative Disorders / Q000097:blood / Q000209:etiology / Q000401:mortality; D015995:Prevalence; D012307:Risk Factors; D012859:Sjogren's Syndrome / Q000150:complications / Q000453:epidemiology*
D003165:Complement System Proteins