Problem with PDF anf HTML versions prior to October 20, 2012
Daniel Kirouac, Merrimack Pharmaceuticals
14 November 2012
Note that PDF and HTML versions of this article downloaded prior to October 20, 2012 contained an error: All of the equations presented in the methods section were omitted. Please use current version if you downloaded the article prior to this date.
Problem with PDF anf HTML versions prior to October 20, 2012
14 November 2012
Note that PDF and HTML versions of this article downloaded prior to October 20, 2012 contained an error: All of the equations presented in the methods section were omitted. Please use current version if you downloaded the article prior to this date.
Competing interests
none