Text this: Analysis of neural stem cell self-renewal and differentiation using in vivo RNAi in drosophila.

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