McConnell 1982.

Methods	RCT unit of allocation: provider unit of analysis: prescriptions power calculation: not done concealment of allocation: not clear follow up of professionals: done blinded assessment of outcome: done baseline measurement: not done reliable primary outcome measure: done protection against contamination: not clear analysis appropriate: no
Participants	33 physicians in New Mexico, USA treating patients of all ages for upper respiratory infection/streptococcal throat infection
Interventions	1. Academic detailing by physician 2. No intervention control
Outcomes	Professional practice: Change in rate of prescribing of tetracycline Patient: None
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	B ‐ Unclear