AUTHOR=Li Jiaguo , Zhang Lu , Wang Xinhao TITLE=Distinct types of VHHs in Alpaca JOURNAL=Frontiers in Immunology VOLUME=15 YEAR=2024 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2024.1447212 DOI=10.3389/fimmu.2024.1447212 ISSN=1664-3224