038; Katerndahl, 1991, pp. 391-396). Anxiety may be a contributing factor in the development of clinical depression (Weisz, Sweeney, Proffitt, & Carr, 1993, pp. 411-418). Anxiety also may be associated with the development of mood problems (Catanzaro, 1993, pp. 327-330). Anxiety may be one of the causal factors in the development of behavioral problems (Famularo & Fenton, 1994, pp. 1032-1038). A sense of panic is a component of many anxiety disorders (American Psychiatric Association, 1994, p. 393).
The identification of an illness requires (1) a differential diagnosis, (2) a treatment course, and (3) cure (Stravynski & O'Connor, 1995, p. 608). An illness must have signs (symptoms) distinguishing it from other illnesses. The symptomatology must fit into a unitary category (syndrome).
...