Figure 6.

Comparison of the cumulative duration of cyclic vomiting episodes per year at the time of the initial consultation and at the time of follow-up in 29 patients. Data points are the products of the estimated number of episodes per year multiplied by the average duration of episodes and are expressed as 24-hour units of time. The intervals between initial consultations and follow-up ranged from 1 to 10 years and averaged 3.8 years.

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