. 2012 Aug 21;2012:636157. doi: 10.1155/2012/636157
Copyright © 2012 B. Kwiatkowska and M. Maślińska.
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 1.
14 member lactone rings of erythromycin.