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Adult
3
Arthritis, Rheumatoid
3
Female
3
Humans
3
Male
3
Middle Aged
3
Severity of Illness Index
3
adult
3
article
controlled study
3
disease duration
female
human
3
major clinical study
3
male
3
priority journal
rheumatoid arthritis
Argentina
2
Cohort Studies
2
Disease severity
2
HLA DR antigen
2
Rheumatoid arthritis
2
demography
2
hand radiography
2
polymerase chain reaction
2
Aged
1
Alleles
1
Anti-Ro antibodies
1
Antibodies, Anti-Idiotypic
1
Antibodies, Antinuclear
1
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1
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2
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3JOUR