For example, the work of
Fishman in 1980 presented the field with a treatment
package to deal with agoraphobia, which had been
the primary diagnosis at the time, with panic existing
as a secondary symptomatology. Based on his years of
practice with cognitive-behavior therapy, Fishman
developed a multifaceted intervention to deal with the
symptoms of agoraphobia, panic, and anxiety, which
consisted of applied relaxation, breathing retraining,
prolonged imaginal exposure, interoceptive exposure,
and in vivo behavioral exposure to deal with the
agoraphobic avoidance.