1. Movia D, Prina-Mello A. Preclinical development of orally inhaled drugs (OIDs)—are animal models predictive or shall we move towards in vitro non-animal models? Animals. 2020;10:1259.
2. WHO. Chronic obstructive pulmonary disease (COPD). Available online: https://www.who.int/news-room/fact-sheets/detail/chronic-obstructive-pulmonary-disease-. Accessed on 23 Mar 2023.
3. WHO. Asthma. Available online: https://www.who.int/news-room/q-a-detail/asthma. Accessed on 23 Mar 2023.
4. WHO. The top 10 causes of death 2020. Available from: https://www.who.int/news-room/fact-sheets/detail/the-top-10-causes-of-death.
5. GBI Research. Global respiratory drugs market to 2023—a changing therapeutic landscape as key patents expire and biologics, targeted therapies and CFTR modulators for asthma and cystic fibrosis treatment emerge as market growth drivers. Available online: http://gbiresearch.com/report-store/market-reports/therapy-analysis/global-respiratory-drugs-market-to2023-a-changing-therapeutic-landscape-as-key-patents-expire-and-biologics-targeted-therapi. Accessed on 26 Mar 2022.