Fig. 1
From: Critical inhaler errors in asthma and COPD: a systematic review of impact on health outcomes
PRISMA diagram. The database search and analysis in Search-1 initially yielded 114 full-text articles or abstracts; give abstracts were removed and incorporated into the results of Search-2 due to being economics-focused; a further five abstracts were added to Search-1 following the grey literature search. Therefore, the final yield of Search-1 was 114