Correction
In a letter to the editor in the March issue by Christopher Thomas, Pharm.D., B.C.P.P., titled “Memantine and Catatonic Schizophrenia” (Am J. Psychiatry 2005; 162:626), additional authors should have been listed. They are as follows: Brendan T. Carroll, M.D., Robert T. Maley, Pharm.D., Kameshwari Jayanti, M.D., and Atchuthamba Koduri, M.D.