1. Julius Center for Health Sciences and Primary Care; University Medical Center Utrecht; The Netherlands
2. Center for Diagnostic Support in Primary Care (SHL-Groep); Department of Scientific Research; Etten-Leur The Netherlands
3. Department of Cardiology, Division of Heart and Lungs; University Medical Center Utrecht; The Netherlands
4. Cardiologist; Leusden The Netherlands
5. Department of Cardiology; Sint Franciscus Hospital; Rotterdam The Netherlands