Beste 2015.

Study characteristics
Methods	Cluster RCT
Participants	Eight VA facilities in the Pacific Northwest, USA 2884 patients
Interventions	CDSS intended to improve hepatocellular carcinoma surveillance by reminding clinicians to perform liver ultrasounds for patients with cirrhosis who had not received surveillance in the preceding 6 months
Outcomes	Process adherence (testing, other)
Co‐Interventions	Educational: None Beyond Clinician Education: None
CDSS Features ‐ Acknowledgement of CDSS Required	Yes ‐ required acknowledgement of the CDSS and documentation of action taken
CDSS Features ‐ Other	Considered alert fatigue in design, conveyed patient‐specific information, developed by study investigators, included supporting information on‐screen, makes care recommendation, other concurrent CDSS, possible to execute desired action, 'push' mode of delivery, targeted underuse, user workflow considered in design
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Unclear risk	N/A
Incomplete outcome data (attrition bias) All outcomes	Low risk
Baseline characteristics similar?	Low risk
Unit of analysis error	High risk