Opening https://www.globenewswire.com/news-release/2023/03/08/2622877/0/en/Tiziana-Life-Sciences-Announces-Publication-in-Proceedings-of-the-National-Academy-of-Sciences-PNAS-Illustrating-the-Immunological-Basis-of-the-Mechanism-of-Action-for-Intranasal-F.html