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

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