“…Reducing intentional NA requires thorough and in-depth knowledge about patients' views and preferences as well as extensive knowledge about how interactions between patients and other health-care providers influence possible NA [4]. Most of the adherence interventions used/tested so far, however, fail to address the causes identified in our surveys as the most important reasons for NA [4,71]. The promotion of positive medication beliefs, a positive view of illness and therapy, an independent measurement and optimization of the doctor-patient relationship, and the optimization of ways of dealing with the medication packaging appear to be elements that are essential for adherence intervention effectiveness.…”