1. Biosimilars in the EU. Information guide for healthcare professionals. Prepared jointly by the European Medicines Agency and the European Commission. Biosimilars in the EU - Information guide for healthcare professionals (www.europa.eu). Accessed 31 Aug 2023.
2. Healthcare expenditure statistics. Eurostat, Statistics Explained. Healthcare expenditure statistics - Statistics Explained (www.europa.eu). Accessed 31 Aug 2023.
3. Biosimilar and Interchangeable Biologics: More Treatment Choices. U.S. Food & Drug Administration. https://www.fda.gov/consumers/consumer-updates/biosimilar-and-interchangeable-biologics-more-treatment-choices#:~:text=Biosimilar%20and%20Interchangeable%20Biologics%3A%20More%20Treatment%20Choices%201,and%20Effective%20...%203%20Interchangeable%20Biosimilar%20Medications%20. Accessed 31 Aug 2023.
4. Guideline on similar biological medicinal products. Committee for Medicinal Products for Human Use (CHMP). European Medicines Agency. https://www.ema.europa.eu/en/documents/scientific-guideline/guideline-similar-biological-medicinal-products-rev1_en.pdf. Accessed 31 Aug 2023.
5. Kurki P, Kang HN, Ekman N, et al. Regulatory evaluation of biosimilars: Refinement of principles based on the scientific evidence and clinical experience. BioDrugs. 2022;36:359–71. https://doi.org/10.1007/s40259-022-00533-x.