ALLERGOLOGIA ET IMMUNOPATHOLOGIA, cilt.41, sa.1, ss.30-36, 2013 (SCI-Expanded)
Background: Asthma symptoms can be triggered by a variety of factors commonly referred to as "triggers". Some of these factors can also induce severe asthma exacerbations. Thus, it can be assumed that actions taken against such triggers may prevent the progression of the disease. However, limited data exist on the clinical importance of these triggers in patients with chronic obstructive pulmonary disease (COPD).