ENGINEERING, APPLIED BIOLOGICAL SCIENCES Correction for “Age-related changes in the plasticity and toughness of human cortical bone at multiple length scales,” by Elizabeth A. Zimmermann, Eric Schaible, Hrishikesh Bale, Holly D. Barth, Simon Y. Tang, Peter Reichert, Bjoern Busse, Tamara Alliston, Joel W. Ager III, and Robert O. Ritchie, which appeared in issue 35, August 30, 2011, of Proc Natl Acad Sci USA (108:14416–14421; first published August 22, 2011; 10.1073/pnas.1107966108).
The authors note that within the Acknowledgments, the line “This work was supported by the National Institutes of Health (NIH/National Institute of Dental and Craniofacial Research) Grant 5R01 DE015633 to the LBNL” should instead appear as “This work was supported by the Laboratory Directed Research and Development Program of Lawrence Berkeley National Laboratory (LBNL), funded by the US Department of Energy under Contract DE AC02 05CH11231.”