PHARMACOLOGY. For the article “In vivo activation of a mutant μ-opioid receptor by antagonist: Future direction for opiate pain treatment paradigm that lacks undesirable side effects,” by Ping-Yee Law, Jesse W. Yang, Xiaohong Guo, and Horace H. Loh, which appears in number 4, February 18, 2003, of Proc. Natl. Acad. Sci. USA (100, 2117–2121; First Published January 13, 2003; 10.1073/pnas.0334906100), the author line contained the following errors. Dr. Yang should be the first author. In addition, Dr. Yang's name should have appeared as Wanling Yang, not Jesse W. Yang. The corrected author line is shown below.
Wanling Yang, Ping-Yee Law, Xiaohong Guo, and Horace H. Loh