PHYSICS. For the article “Inelastic x-ray scattering of dense solid oxygen: Evidence for intermolecular bonding,” by Yue Meng, Peter J. Eng, John S. Tse, Dawn M. Shaw, Michael Y. Hu, Jinfu Shu, Stephen A. Gramsch, Chichang Kao, Russell J. Hemley, and Ho-kwang Mao, which appeared in issue 33, August 19, 2008, of Proc Natl Acad Sci USA (105:11640–11644; first published August 7, 2008; 10.1073/pnas.0805601105), the authors note that, due to a printer's error, the author name Chichang Kao appeared incorrectly and should instead appear as Chi-chang Kao. The corrected author line appears below. Also, in the Acknowledgements, “DOE–Office of Nuclear and National Security Information” should have appeared as “DOE–National Nuclear Security Administration.” The online version has been corrected. Finally, on page 11643, left column, in Materials and Methods, line 5, “liquidized” should have appeared as “liquefied.”
Yue Meng, Peter J. Eng, John S. Tse, Dawn M. Shaw, Michael Y. Hu, Jinfu Shu, Stephen A. Gramsch, Chi-chang Kao, Russell J. Hemley, and Ho-kwang Mao