title: Rheumatoid arthritis and ankylosing spondylitis in an ethnically homogenous population: familial distribution of complaints.
mesh_terms: D000203:Activities of Daily Living; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001172:Arthritis, Rheumatoid / Q000235:genetics*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D013167:Spondylitis, Ankylosing / Q000235:genetics*; D013223:Statistics as Topic; D011795:Surveys and Questionnaires; D013997:Time Factors