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Rheumatoid Arthritis
Lupus Erythematosus, Systemic
Antirheumatic Agents
Methotrexate
Treatment Outcome
Severity of Illness Index
Risk Factors
Age of Onset
Proportional Hazards Models
Health Status
Comorbidity
Predictive Value of Tests
Cohort Studies
Risk Assessment
Mexico
Tertiary Care Centers
Medication Adherence
Disability Evaluation
Case Control Studies
Disease Progression
Co-Publications
3
2
1
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