發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : The relationship of dental calculus to caries, gingivitis, and selected salivary factors in 11- to 13-year-old children in Chiang Mai, Thailand