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  ______     ___       _____   _    _     _____   
 /_____//   / _ \\    / ___// | || | ||  /  ___|| 
 `____ `   / //\ \\   \___ \\ | || | || | // __   
 /___//   |  ___  ||  /    // | \\_/ || | \\_\ || 
 `__ `    |_||  |_|| /____//   \____//   \____//  
 /_//     `-`   `-` `-----`     `---`     `---`   
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Text this: Geographical variation in ambulance calls is associated with socioeconomic status