Patient information will be entered into the CSAN database (created by PI Dr. Vethanayagam in connection with Mr. Jack Yeung) and will help researchers and doctors from multiple hospitals and universities across Canada to understand this subpopulation of asthmatics better. It will help to answer questions regarding SA epidemiology, asthma education, inflammatory monitoring, risks of near fatal asthma (NFA), symptom perception, changes in lung structure and function, co-morbidities, and the effectiveness of developing regional severe asthma clinics. Two of the early projects the investigators will be working on are psychosocial co-morbidities in asthma and medication coverage related to asthma.