Figure 4.

Panic symptoms in 21 men and 7 women during prodromal and emetic phases of cyclic vomiting episodes. The abrupt onset of intense fear or discomfort reaching a peak within 10 minutes, accompanied by four or more of the 13 symptoms listed on the left, are the diagnostic criteria for panic attacks [35].

Fleisher et al. BMC Medicine 2005 3:20   doi:10.1186/1741-7015-3-20
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