Effect of age on the frequency of anxiety disorders in major depression with psychotic features.
Flint AJ, Peasley-Miklus C, Papademetriou E, Meyers BS, Mulsant BH, Rothschild AJ, Whyte EM. Effect of age on the frequency of anxiety disorders in major depression with psychotic features. Am J Geriatr Psychiatry. 2010 May; 18(5):404-12.