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

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Text this: Persistence of measles, mumps, and rubella protective antibodies 3 years after revaccination in HIV-infected children receiving antiretroviral therapy