發送短信

數:

提供者:

CAPTCHA:

   _____    _____               ______    ______  
  / ___//  |  ___||     ___    /_   _//  /_____// 
  \___ \\  | ||__      /   ||   -| ||-   `____ `  
  /    //  | ||__     | [] ||   _| ||_   /___//   
 /____//   |_____||    \__ ||  /_____//  `__ `    
`-----`    `-----`      -|_||  `-----`   /_//     
                         `-`             `-`

Please enter what you see:

發送短信 : Improving variance function estimation in semiparametric longitudinal data analysis