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. 2020 Apr 23;13:817–828. doi: 10.2147/JPR.S242093

Figure 1.

Figure 1

X axis = no. of days of follow up; y axis = no. of attacks a day. Red bars = no. of attacks a day; blue dotted line = 7-day moving average. Green label = no. of PBCS treatments at this time point. Patient 15–20 discontinued headache diary, they were followed up by telephone interview and last value carried over method was used to impute missing data.