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| |  | ||  /_   _//   / ___//  /_   _//  /_   _// 
| |/\| ||   -| ||-    \___ \\   -| ||-   `-| |,-  
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|_// \_||  /_____//  /____//   /_____//    |_||   
`-`   `-`  `-----`  `-----`    `-----`     `-`'

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Text this: Epidemiology, investigation, management, and outcome of headache in emergency departments (HEAD study)-A multinational observational study