Fig. 1
From: Rationale and Design of the Brigham Cohort for psoriasis and psoriatic arthritis registry (COPPAR)
Typical follow-up schedule for patients in the COPPAR registry. 
: Baseline visit with Informed Consent, Physician Assessment, Patient Questionnaire, labs and sample collection. i: Internet based abbreviated Patient Questionnaires. 
: Follow-up visit with Physician Assessment, Patient Questionnaire and labs