https://www.healthcentral.com/article/24-things-that-may-cause-asthma
Asthma

24 Things That May Cause Asthma

    John Bottrell

    John Bottrell

    John Bottrell is a registered Respiratory Therapist. He wrote for HealthCentral as a health professional for Asthma and Chronic Obstructive Pulmonary Disease (COPD).