Fig. 2.

Top 5 data sources as per count of publications. Data sources with the highest number of publications during the search period of this review. On the right, the possibility to access or link these data sources is presented. ACTION-GTWG, Acute Coronary Treatment and Intervention Outcomes Network Registry-Get With The Guidelines; GRACE/GRACE 2, Global Registry of Acute Coronary Events/Global Registry of Acute Coronary Events 2; HF, heart failure; ACS, acute coronary syndrome; AF, atrial fibrillation; Gulf CARE, Gulf aCute heArt failuRe rEgistry; SWEDEHEART, Swedish Web-System for Enhancement and Development of Evidence-Based Care in Heart Disease Evaluated According to Recommended Therapies; EORP, EUR Observational Research Programme.