(C) The headache was present more than 8 days per month for more than 3 months ... presence of other evidence of causation such as the headache was treated with multiple analgesic agents without ...

Data from the 2005 survey were analysed to assess differences in sociodemographic profiles and rates of common comorbidities between two groups of respondents: CM (ICHD-2 defined migraine; ≥15 days of ...

Acute PTH (aPTH) is defined by new or worsening of pre-existing headache occurring within 7 days after trauma, whereas chronic PTH (cPTH ... Conclusions PTH is an important health problem with a ...