Text this: An in vitro culture system for long-term expansion of epithelial and mesenchymal salivary gland cells: Role of TGF- ? 1 in salivary gland epithelial and mesenchymal differentiation

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