Nationwide Utilization of Danish Government Electronic Letter System for Increasing InFLUenza Vaccine Uptake Among Adults With Chronic Disease

Conditions:   Influenza;   Behavior and Behavior Mechanisms Intervention:   Behavioral: Behavioral Economic Principles Sponsors:   Tor Biering-Sørensen;   Statens Serum Institut Recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials