Correction
In the second paragraph of the reply by Martin H. Teicher, M.D., Ph.D., et al. to the letter "Effectiveness of the Light Visor" by Gordon Wallace, D.V.M., M.P.H. (August 1996 issue, pp. 1110-1111), the complicated crossover study with a significant sequence effect that showed the light box to be superior to placebo was by Terman and Terman, not Teicher et al.
