Neurobiology. In the article “Carboxyfullerenes as neuroprotective agents” by Laura L. Dugan, Dorothy M. Turetsky, Cheng Du, Doug Lobner, Mark Wheeler, C. Robert Almli, Clifton K.-F. Shen, Tien-Yau Luh, Dennis W. Choi, and Tien-Sung Lin, which appeared in number 17, August 19, 1997, of Proc. Natl. Acad. Sci. USA (94, 9434–9439), the country affiliation for Tien-Yau Luh and Clifton K.-F. Shen was incorrectly listed as the People’s Republic of China. The correct affiliation is: Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China.