. 2008 May 1;13(5):1025–1034. doi: 10.3390/molecules13051025
© 2008 by the authors.
Licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
Figure 2.
The secondary structure of HA.