https://www.healthcentral.com/article/10-copd-triggers-to-be-aware-of
COPD

10 COPD Triggers To Be Aware Of

    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).