The Connective Tissue Disease Clinic is offered at Mayo’s campuses in Arizona and Minnesota. The experts of this clinic specialize in care of people with systemic lupus erythematosus, Sjogren's syndrome, scleroderma, mixed connective tissue disease and anti-phospholipid syndrome. The clinic involves multidisciplinary care and consultation with other specialists in kidney diseases (nephrologists), blood diseases (hematologists), pulmonary hypertension and ear nose and throat diseases. Staff are actively involved in basic and clinical research on these diseases.