Figure 1From: A systematic review with attempted network meta-analysis of asthma therapy recommended for five to eighteen year olds in GINA steps three and four Flowchart from database searches to inclusion of the trials. 7,152 of the 8,175 references were excluded because they did not fulfil the inclusion criteria. Main reasons for exclusion were: reference was not a trial, wrong age group or no separate data for < 18 year olds, wrong dosage, not asthma, follow up duration < 4 weeks or cross-over design.Back to article page