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Adult
2
Arthritis, Rheumatoid
Disease severity
2
Female
2
HLA DR antigen
2
Humans
2
Male
2
Middle Aged
2
Rheumatoid arthritis
2
Severity of Illness Index
2
adult
2
article
controlled study
2
disease duration
2
female
hand radiography
human
2
major clinical study
2
male
2
polymerase chain reaction
2
priority journal
rheumatoid arthritis
2
Aged
1
Alleles
1
Anti-Ro antibodies
1
Antibodies, Anti-Idiotypic
1
Antibodies, Antinuclear
1
Argentina
1
Clinical significance
1
Cohort Studies
1
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1
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2JOUR