DeForest Cole A, Anseth Kristi S
Chemical & Biological Engineering, University of Colorado and the Howard Hughes Medical Institute, 424 UCB, Boulder, CO 80309-0424, USA.
Angew Chem Int Ed Engl. 2012 Feb 20;51(8):1816-9. doi: 10.1002/anie.201106463. Epub 2011 Dec 8.