Medicine
Cohort
Systemic lupus erythematosus
Mucocutaneous zone
Internal medicine
Hydroxychloroquine
Rheumatology
Proportional hazards model
Hazard ratio
Lupus erythematosus
Cohort study
Disease
Immunology
Confidence interval
Antibody
Coronavirus disease 2019 (COVID-19)
Infectious disease (medical specialty)