Patients with chronic or episodic recurrent dizziness will track their vestibular symptoms with every episode in the iPhone application, Vertige. They will track their symptoms at the conclusion of every episode for a total of six (6) months. The app has a geolocation software that will pair environmental data (barometric pressure, temperature, humidity, etc.) with symptoms. We will then analyze the data to evaluate for associations.

The ECHO Cohort is a longitudinal prospective multi-site study aiming to understand how the environment and things that happen early in children's lives - even before they are born - affect their development, health, and well-being. This research program includes many study sites across the United States. ECHO will combine information about 20,000 pregnant participants, more than 50,000 children, and their families. With so many participants from across the country, researchers can answer important childhood health questions.

The goal of this study is to understand how positive and negative social experiences affect epigenetic marks and gene function, and thereby influence lupus in African American women. This study requires one study visit to answer a few questionnaires and donate a blood sample. We are looking for volunteers with and without lupus to participate. Compensation is available.

Systemic lupus erythematosus (lupus; SLE), Systemic Sclerosis (scleroderma; SSc) and Systemic Vasculitis (SV) are relatively rare rheumatic diseases that disproportionately impact the African American community, and particularly African American women. The causes of lupus, scleroderma and vasculitis are unknown, but thought to include both genetic and environmental factors. We are enrolling lupus, scleroderma, and vasculitis patients, and healthy control subjects. This is not a drug study. The purpose of this study is to better understand the factors that predispose people to develop lupus, scleroderma, and vasculitis. Information about medical, social and family history, medications, physical exam findings, and laboratory tests will be collected for analysis. This study will involve approximately 1360 volunteers.