Clonazepam versus alprazolam in the treatment of panic disorder: interim analysis of data from a prospective, double-blind, placebo-controlled trial.
Tesar GE, Rosenbaum JF, Pollack MH, Herman JB, Sachs GS, Mahoney EM, Cohen LS, McNamara M, Goldstein S. J Clin Psychiatry. 1987 Oct; 48 Suppl:16-21.