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            _____   __    __    _____      _____  
  ____     |  ___|| \ \\ / //  |  ___||   / ___// 
 |    \\   | ||__    \ \/ //   | ||__     \___ \\ 
 | [] ||   | ||__     \  //    | ||__     /    // 
 |  __//   |_____||    \//     |_____||  /____//  
 |_|`-`    `-----`      `      `-----`  `-----`   
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Text this: Vitamin A status of the minority ethnic group of Karen hill tribe children aged 1-6 years in Northern Thailand