Fiks 2013.

Study characteristics
Methods	Cluster RCT
Participants	Primary care practice‐based research network, USA (Children’s Hospital of Philadelphia Pediatric Research Consortium) 11 245 patients, 22 practices
Interventions	Reminder for all routine adolescent vaccinations appearing prominently whenever patient encounter was opened within the electronic health record
Outcomes	Process adherence (prescribing), clinical endpoint (outcomes pertaining to HPV vaccination status)
Co‐Interventions	Educational: Single educational session for providers in intervention group Beyond Clinician Education: Audit and feedback for providers in intervention group
CDSS Features ‐ Acknowledgement of CDSS Required	No
CDSS Features ‐ Other	Ambush, makes care recommendation, 'push' mode of delivery, targeted underuse
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Low risk
Incomplete outcome data (attrition bias) All outcomes	Low risk
Baseline characteristics similar?	Low risk
Unit of analysis error	Low risk