All patients enrolled in the Vasculitis Clinical Research Consortium's Contact Registry were invited via email to participate in this study. The Contract Registry includes people who self-identify as having one of the following types of vasculitis: Behçets disease, Churg-Strauss Syndrome, CNS Vasculitis, Giant Cell Arteritis, granulomatosis with polyangiitis (Wegener's granulomatosis), Henoch-Schöenlein Purpura, Microscopic Polyangiitis, Polyarteritis Nodosa, or Takayasu's Arteritis. People voluntarily enroll in this Registry with the understanding that they will receive information about clinical studies for which they might be eligible. The introductory email included basic information about the study and all of the required elements for informed consent in a brief format. Once participants agreed to participate in the study, they were directed to the online questionnaire.