Developing the content of two behavioural interventions: Using theory-based interventions to promote GP management of upper respiratory tract infection without prescribing antibiotics #1

Table 1 Comparison of the stages in an evaluation of complex interventions to stages of drug evaluation.

Evaluation of drugs	Pre-clinical	Phase I	Phase II	Phase III	Phase IV
Evaluation of implementation strategies	Theory	Modelling	Exploratory trial	Definitive RCT	Long term implementation

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