發送短信 : Assessing age-related performance decrements in user interface tasks

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