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Fig. 1 | The Journal of Headache and Pain

Fig. 1

From: Post-angiography headaches

Fig. 1

Previous headache diagnosis and headaches at each revaluation (24 h and 6 months); 1st Ev (24 h): evaluation 24 h after the procedure; 2nd Ev (6 m): evaluation 6 months after the procedure; X axis represents previous headache history; Numbers illustrated are patients counts within each group

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