Brain blood flow in anxiety disorders. OCD, panic disorder with agoraphobia, and post-traumatic stress disorder on 99mTcHMPAO single photon emission tomography (SPET). - Lucey,J.V.; Costa,D.C.; Adshead,G.; Deahl,M.; Busatto,G.; Gacinovic,S.; Travis,M.; Pilowsky,L.; Ell,P.J.; Marks,I.M.; Kerwin,R.W. (Br J Psychiatry, 1997)