. 2016 Nov 17;21(11):1549. doi: 10.3390/molecules21111549
© 2016 by the authors.
Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
Figure 1.
Chemical structure of podophyllotoxin (POD).