. 2002 Jan 17;3:3. doi: 10.1186/1471-2474-3-3
Copyright © 2002 Lee and Hyman; licensee BioMed Central Ltd. This is an Open Access article: verbatim copying and redistribution of this article are permitted in all media for any purpose, provided this notice is preserved along with the article's original URL.
Figure 5.
Kelvin model.