Study design and setting
This cross-sectional study was conducted between September 3, 2014 and March 20, 2015 in 48 Dutch pharmacies (44 community and 4 outpatient). The EMERGE (ESPACOMP Medication Adherence Reporting Guideline) was used as guidance in reporting this study 25. As this study did not fall under the scope of the Dutch Medical Research Involving Human Subjects Act, ethical approval was not required.