發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : A comparison of pregnancy outcomes after second-trimester amniocentesis between cases with penetration of the placenta and nonpenetration