Little Steven R
Departments of Chemical Engineering, Bioengineering, and Immunology, and The McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA.
Proc Natl Acad Sci U S A. 2012 Jan 24;109(4):999-1000. doi: 10.1073/pnas.1120993109. Epub 2012 Jan 17.