Kedzia, Sarah, Regina Kunz, Andreas Zeller, Thomas Rosemann, Peter Frey, Johanna Sommer, Lilli Herzig, Kristina Alexanderson, and Wout de Boer. 2015. “Sickness Certification in Primary Care: A Survey on Views and Practices Among Swiss Physicians”. Swiss Medical Weekly 145 (4748):w14201. https://doi.org/10.4414/smw.2015.14201.