發送短信 : Vitamin A status of the minority ethnic group of Karen hill tribe children aged 1-6 years in Northern Thailand

 _____       ___     __   _    _    _     _  _   
|  __ \\    / _ \\  | || | || | || | ||  | \| || 
| |  \ ||  | / \ || | '--' || | || | ||  |  ' || 
| |__/ ||  | \_/ || | .--. || | \\_/ ||  | .  || 
|_____//    \___//  |_|| |_||  \____//   |_|\_|| 
 -----`     `---`   `-`  `-`    `---`    `-` -`