1. Nursing Science; Department of Public Health; Faculty of Medicine; University of Basel; Basel Switzerland
2. Academic Centre for Nursing and Midwifery; Department of Public Health and Primary Care; KU Leuven; Leuven Belgium
3. Heart Transplant Program; University Hospitals of Leuven; Leuven Belgium
4. University Hospital of Basel; University of Basel; Basel Switzerland
5. School of Nursing and Health Studies; University of Missouri-Kansas City; Kansas City MO USA
6. Complexo Hospitalario Universitario A Coruña (CHUAC); CIBERCV; INIBIC; Universidade da Coruña (UDC); La Coruña Spain