Correction

MEDICAL SCIENCES. For the article “Functional recovery following traumatic spinal cord injury mediated by a unique polymer scaffold seeded with neural stem cells,” by Yang D. Teng, Erin B. Lavik, Xianlu Qu, Kook I. Park, Jitka Ourednik, David Zurakowski, Robert Langer, and Evan Y. Snyder, which appeared in number 5, March 5, 2002, of Proc. Natl. Acad. Sci. USA (99, 3024–3029; First Published February 26, 2002; 10.1073/pnas.052678899), the authors note that the following information was inadvertently omitted. “Yang D. Teng may be consulted at his new address, Department of Neurosurgery, Children's Hospital, Boston (e-mail: yang.teng@tch.harvard.edu). Kook I. Park's present affiliation is the Department of Pediatrics, Pharmacology, and Brain, Korea 21 Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Korea. He was partly supported by the Neuroscience Research Program from Korean Ministry of Science and Technology.”