Figure 1. (A) Cumulative doses used by controls in phase 1 of the study. Time epochs were 10 min. n0= the number of patients with a cumulative dose of 0 mg. (B) Cumulative doses used by patients listening to music in phase 1 of the study. Time epochs are 10 min. n0= the number of patients with a cumulative dose of 0 mg. **Values of this patient were 210 mg after three time epochs, 270 mg after four time epochs, 360 mg after five time epochs, and 420 mg after six time epochs.