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Effect of CCK‐4 on heart rate in panickers (n = 8, squares) and nonpanickers (data from 2 subjects are missing, n = 6, triangles). Scores are given as mean ± SEM. Time is expressed as minutes relative to CCK‐4 injection. Repeated measured ANOVA indicated a significant time effect for heart rate (F 2.6,30.8 = 47.01, P < 0.001) however, no significant time × panic status interaction.
