Fig. 1: Flow of articles identified by literature review in PubMed.
From: Improving primary care management of asthma: do we know what really works?
Process by which papers identified by literature review were subsequently screened for eligibility and the different stages in this process. This highlights the number of articles that were selected at each stage of the process, as well as the number of articles excluded and the reasons for exclusion. n number of articles.
